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  <xs:element id="onit_FinancingLiabilityMortgageServicingRightsPledgedMember" abstract="true" name="FinancingLiabilityMortgageServicingRightsPledgedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_FinancingLiabilityExcessServicingSpreadMember" abstract="true" name="FinancingLiabilityExcessServicingSpreadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_LoansHeldForSaleFairValueMember" abstract="true" name="LoansHeldForSaleFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ForwardLHFSTradesMember" abstract="true" name="ForwardLHFSTradesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_TBAForwardMortgageBackedSecuritiesTradesMember" abstract="true" name="TBAForwardMortgageBackedSecuritiesTradesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_TBAForwardPipelinesTradesMember" abstract="true" name="TBAForwardPipelinesTradesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_AdvancesAndMatchFundedAdvancesFairValueDisclosure" abstract="false" name="AdvancesAndMatchFundedAdvancesFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FinancialLiabilitiesAbstract" abstract="true" name="FinancialLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_PurchasesIssuancesSalesAndSettlementsAbstract" abstract="true" name="PurchasesIssuancesSalesAndSettlementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersToLoansHeldForSaleAtFairValue" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersToLoansHeldForSaleAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FairValueMeasurementWithUnobservableInputsReconciliationAssetTransfersOutOfLevel3ToReverseMortgageLoansAtFairValue" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationAssetTransfersOutOfLevel3ToReverseMortgageLoansAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersToReceivablesNet" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersToReceivablesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_CapitalizationOfAdvancesOnGinnieMaeModifications" abstract="false" name="CapitalizationOfAdvancesOnGinnieMaeModifications" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOther" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3Other" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3Other" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_TotalRealizedAndUnrealizedGainsAndLosses2Abstract" abstract="true" name="TotalRealizedAndUnrealizedGainsAndLosses2Abstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_LoansHeldforInvestmentReverseMortgagesMember" abstract="true" name="LoansHeldforInvestmentReverseMortgagesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_FairValueAgencyMortgageServicingRightsMember" abstract="true" name="FairValueAgencyMortgageServicingRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_FairValueNonAgencyMortgageServicingRightsMember" abstract="true" name="FairValueNonAgencyMortgageServicingRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_HMBSRelatedBorrowingsMember" abstract="true" name="HMBSRelatedBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MortgageServicingRightsPledgedMember" abstract="true" name="MortgageServicingRightsPledgedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MeasurementInputWeightedAverageCostToServiceMember" abstract="true" name="MeasurementInputWeightedAverageCostToServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_GSEMember" abstract="true" name="GSEMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInPrepaymentSpeedPercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInPrepaymentSpeedPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInPrepaymentSpeedPercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInPrepaymentSpeedPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDiscountRatePercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDiscountRatePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDiscountRatePercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDiscountRatePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDelinquencyPercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDelinquencyPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDelinquencyPercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDelinquencyPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDelinquency" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInDelinquency" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDelinquency" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInDelinquency" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInCostToServicePercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInCostToServicePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInCostToServicePercent" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInCostToServicePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInCostToService" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentAdverseChangeInCostToService" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInCostToService" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf20PercentAdverseChangeInCostToService" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_MovementInLoansHeldForSaleAtFairValueRollForward" abstract="true" name="MovementInLoansHeldForSaleAtFairValueRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_TransferOfPortfolioLoansToReceivables" abstract="false" name="TransferOfPortfolioLoansToReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_TransferOfPortfolioLoansToRealEstateOwned" abstract="false" name="TransferOfPortfolioLoansToRealEstateOwned" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_OtherAdjustmentMortgageLoansHeldForSale" abstract="false" name="OtherAdjustmentMortgageLoansHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_PrincipalAmountOutstandingOnLoansHeldForSale" abstract="false" name="PrincipalAmountOutstandingOnLoansHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_PremiumDiscountBalanceOnLoansHeldForSale" abstract="false" name="PremiumDiscountBalanceOnLoansHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FairValueAdjustmentToLoansHeldForSale" abstract="false" name="FairValueAdjustmentToLoansHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_GSELoansMember" abstract="true" name="GSELoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_GovernmentForwardLoansMember" abstract="true" name="GovernmentForwardLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_RepurchasedGinnieMaeLoansMember" abstract="true" name="RepurchasedGinnieMaeLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ReverseLoansMember" abstract="true" name="ReverseLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ForwardMortgageLoansMember" abstract="true" name="ForwardMortgageLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_GainLossOnInterestRateDerivativeInstruments" abstract="false" name="GainLossOnInterestRateDerivativeInstruments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ChangeInFairValueOfMortgageLoansHeldForSale" abstract="false" name="ChangeInFairValueOfMortgageLoansHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_HECMLoansSecuritizedPledgedToHMBSRelatedBorrowingsMember" abstract="true" name="HECMLoansSecuritizedPledgedToHMBSRelatedBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_NewHECMLoanOriginationsAndHECMLoanTailsUnsecuritizedMember" abstract="true" name="NewHECMLoanOriginationsAndHECMLoanTailsUnsecuritizedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ReverseMSRNet" abstract="false" name="ReverseMSRNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ProceedsFromSaleLoanMortgageHeldForSaleNet" abstract="false" name="ProceedsFromSaleLoanMortgageHeldForSaleNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_RepaymentOfWarehouseFinancingOfAssetsSold" abstract="false" name="RepaymentOfWarehouseFinancingOfAssetsSold" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_RepaymentOfServicingLiability" abstract="false" name="RepaymentOfServicingLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesUnpaidPrincipal" abstract="false" name="LoansHeldForSaleReverseMortgagesUnpaidPrincipal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesFairValueAdjustment" abstract="false" name="LoansHeldForSaleReverseMortgagesFairValueAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgages" abstract="false" name="LoansHeldForInvestmentReverseMortgages" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesOriginations" abstract="false" name="LoansHeldForInvestmentReverseMortgagesOriginations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesRepayments" abstract="false" name="LoansHeldForInvestmentReverseMortgagesRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesLoansHeldForSaleAtFairValue" abstract="false" name="LoansHeldForInvestmentReverseMortgagesLoansHeldForSaleAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesReceivablesNet" abstract="false" name="LoansHeldForInvestmentReverseMortgagesReceivablesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesRealEstateOwned" abstract="false" name="LoansHeldForInvestmentReverseMortgagesRealEstateOwned" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesOther" abstract="false" name="LoansHeldForInvestmentReverseMortgagesOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesFairValueChanges" abstract="false" name="LoansHeldForInvestmentReverseMortgagesFairValueChanges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForInvestmentReverseMortgagesUnSecuritizedLoans" abstract="false" name="LoansHeldForInvestmentReverseMortgagesUnSecuritizedLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesOriginations" abstract="false" name="LoansHeldForSaleReverseMortgagesOriginations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesRepayments" abstract="false" name="LoansHeldForSaleReverseMortgagesRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesTransfersToLoansHeldForSaleAtFairValue" abstract="false" name="LoansHeldForSaleReverseMortgagesTransfersToLoansHeldForSaleAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesTransfersToReceivablesNet" abstract="false" name="LoansHeldForSaleReverseMortgagesTransfersToReceivablesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesTransfersToRealEstateOwned" abstract="false" name="LoansHeldForSaleReverseMortgagesTransfersToRealEstateOwned" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesTransferToOther" abstract="false" name="LoansHeldForSaleReverseMortgagesTransferToOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesFairValueChanges" abstract="false" name="LoansHeldForSaleReverseMortgagesFairValueChanges" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansReceivableFairValueDisclosurePendingPooling" abstract="false" name="LoansReceivableFairValueDisclosurePendingPooling" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_HMBSRelatedBorrowingsSecuritization" abstract="false" name="HMBSRelatedBorrowingsSecuritization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_HMBSRelatedBorrowingsAdditionalProceedsFromSecuritizationOfHECMLoansAndTails" abstract="false" name="HMBSRelatedBorrowingsAdditionalProceedsFromSecuritizationOfHECMLoansAndTails" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_HMBSRelatedBorrowingsRepayments" abstract="false" name="HMBSRelatedBorrowingsRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_HMBSRelatedBorrowingsChangeInFairValue" abstract="false" name="HMBSRelatedBorrowingsChangeInFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgagesRepaymentsOfLoansPreviouslyHeldForInvestment" abstract="false" name="LoansHeldForSaleReverseMortgagesRepaymentsOfLoansPreviouslyHeldForInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_NetInterestIncomeServicingFee" abstract="false" name="NetInterestIncomeServicingFee" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoandsHeldForInvestmentReverseMortgageOtherChangeInFairValue" abstract="false" name="LoandsHeldForInvestmentReverseMortgageOtherChangeInFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LoansHeldForSaleReverseMortgageOtherChangeInFairValue" abstract="false" name="LoansHeldForSaleReverseMortgageOtherChangeInFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesOnBehalfofBorrowersTable" abstract="true" name="AdvancesOnBehalfofBorrowersTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="onit_PrincipalAndInterestMember" abstract="true" name="PrincipalAndInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_TaxesAndInsuranceMember" abstract="true" name="TaxesAndInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ForeclosuresAndBankruptcyCostsMember" abstract="true" name="ForeclosuresAndBankruptcyCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_InvestorAxis" abstract="true" name="InvestorAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
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  <xs:element id="onit_AdvanacesMember" abstract="true" name="AdvanacesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_CounterpartyRiskMember" abstract="true" name="CounterpartyRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_AdvancesOnBehalfOfBorrowersLineItems" abstract="true" name="AdvancesOnBehalfOfBorrowersLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerGross" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerNetOfValuationAllowance" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerNetOfValuationAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_AdvancesRollForward" abstract="true" name="AdvancesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerBeforeAllowanceForLosses" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerBeforeAllowanceForLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerIncrease" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerTransfersFromToREO" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerTransfersFromToREO" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsOnBehalfOfBorrowerTransfersToOtherAssets" abstract="false" name="AdvancesPaymentsOnBehalfOfBorrowerTransfersToOtherAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsonBehalfofBorrowerSales" abstract="false" name="AdvancesPaymentsonBehalfofBorrowerSales" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesTransferToLoansHeldForSale" abstract="false" name="AdvancesTransferToLoansHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsonBehalfofBorrowersCollectionOfAdvancesChargeOffsAndOtherNet" abstract="false" name="AdvancesPaymentsonBehalfofBorrowersCollectionOfAdvancesChargeOffsAndOtherNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AdvancesPaymentsonBehalfofBorrowerAssetAcquisitions" abstract="false" name="AdvancesPaymentsonBehalfofBorrowerAssetAcquisitions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FinancingReceivableAllowanceForCreditLossWriteoffsAndOther" abstract="false" name="FinancingReceivableAllowanceForCreditLossWriteoffsAndOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_FairValueGSEMortgageServicingRightsMember" abstract="true" name="FairValueGSEMortgageServicingRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="onit_NewResidentialInvestmentCorpMember" abstract="true" name="NewResidentialInvestmentCorpMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MAVAssetVehicleLLCMember" abstract="true" name="MAVAssetVehicleLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="onit_OriginalRightstoMortgageServicingRightsAgreementsMember" abstract="true" name="OriginalRightstoMortgageServicingRightsAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ServicingAssetAtFairValueSales" abstract="false" name="ServicingAssetAtFairValueSales" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingAssetsAtFairValueAdditionsRecognizedFromMortgageSales" abstract="false" name="ServicingAssetsAtFairValueAdditionsRecognizedFromMortgageSales" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_ServicingAssetsAtFairValueNetAdditionsSalesRecognized" abstract="false" name="ServicingAssetsAtFairValueNetAdditionsSalesRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_ServicingAndSubservicingFeesTransferredMSR" abstract="false" name="ServicingAndSubservicingFeesTransferredMSR" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_ServicingLiabilityAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsNetOfAdjustments" abstract="false" name="ServicingLiabilityAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsNetOfAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_TotalFairValueChangesInServicingLiabilityAtFairValueNetOfAdjustments" abstract="false" name="TotalFairValueChangesInServicingLiabilityAtFairValueNetOfAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_SubservicingAssetUnpaidPrincipalBalanceAmountDerecognition" abstract="false" name="SubservicingAssetUnpaidPrincipalBalanceAmountDerecognition" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_TotalFairValueChangesInServicingLiabilityAtFairValue" abstract="false" name="TotalFairValueChangesInServicingLiabilityAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_ServicingAssetAtFairValueChangeInFairValueDueToRealizationOfExpectedCashFlows" abstract="false" name="ServicingAssetAtFairValueChangeInFairValueDueToRealizationOfExpectedCashFlows" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingReceivableGovernmentInsuredLoanClaims" abstract="false" name="ServicingReceivableGovernmentInsuredLoanClaims" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingReceivableGovernmentInsuredLoanClaimsReverse" abstract="false" name="ServicingReceivableGovernmentInsuredLoanClaimsReverse" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_SubservicingFeesAndReimbursableExpenses" abstract="false" name="SubservicingFeesAndReimbursableExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingReceivableDueFromCustodialAccounts" abstract="false" name="ServicingReceivableDueFromCustodialAccounts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ReceivablesFromSaleOfMortgageServicingRights" abstract="false" name="ReceivablesFromSaleOfMortgageServicingRights" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_OtherReceivablesGross" abstract="false" name="OtherReceivablesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_USVIBureauOfInternalRevenueMember" abstract="true" name="USVIBureauOfInternalRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_GovernmentInsuredLoansClaimsMember" abstract="true" name="GovernmentInsuredLoansClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SeriesTwoThousandFifteenVariableFundingNotesMember" abstract="true" name="SeriesTwoThousandFifteenVariableFundingNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SeriesTwoThousandFifteenVariableFundingNotesOneMember" abstract="true" name="SeriesTwoThousandFifteenVariableFundingNotesOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="onit_SeriesTwoThousandTwentyFiveVariableFundingNotesOneMember" abstract="true" name="SeriesTwoThousandTwentyFiveVariableFundingNotesOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SeriesTwoThousandTwentyFiveVariableFundingNotesMember" abstract="true" name="SeriesTwoThousandTwentyFiveVariableFundingNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OcwenMasterAdvanceReceivablesTrustMember" abstract="true" name="OcwenMasterAdvanceReceivablesTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OcwenFreddieAdvanceFundingMember" abstract="true" name="OcwenFreddieAdvanceFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_DebtInstrumentRemainingBorrowingCapacityUncommitedAmount" abstract="false" name="DebtInstrumentRemainingBorrowingCapacityUncommitedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_DebtInstrumentRemainingBorrowingCapacityCommittedAmount" abstract="false" name="DebtInstrumentRemainingBorrowingCapacityCommittedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="onit_AgencyMortgageServicingRightsFinancingFacilityMember" abstract="true" name="AgencyMortgageServicingRightsFinancingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_GinnieMaeMortgageServicingRightsFinancingFacilityMember" abstract="true" name="GinnieMaeMortgageServicingRightsFinancingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="onit_AgencyMSRFinancingFacilityRevolvingLoanMember" abstract="true" name="AgencyMSRFinancingFacilityRevolvingLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLITAssetBackedNotesSeries2024HB2Member" abstract="true" name="OLITAssetBackedNotesSeries2024HB2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_A70MillionPLSMSRFinancingFacilityMember" abstract="true" name="A70MillionPLSMSRFinancingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLIT2023HB1OLIT2024HB1AndOLIT2024HB2Member" abstract="true" name="OLIT2023HB1OLIT2024HB1AndOLIT2024HB2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLITAssetBackedNotesSeries2025HB1Member" abstract="true" name="OLITAssetBackedNotesSeries2025HB1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLITAssetBackedNotesSeries2024HB1Member" abstract="true" name="OLITAssetBackedNotesSeries2024HB1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLITAssetBackedNotesSeries2025HB2Member" abstract="true" name="OLITAssetBackedNotesSeries2025HB2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="onit_OLITAssetBackedNotesSeries2026HB1March2039Member" abstract="true" name="OLITAssetBackedNotesSeries2026HB1March2039Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MSRFinancingFacilitiesMember" abstract="true" name="MSRFinancingFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OLITNoteDiscountAndAmortizationAxis" abstract="true" name="OLITNoteDiscountAndAmortizationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="onit_OLITNoteDiscountAndAmortizationDomain" abstract="true" name="OLITNoteDiscountAndAmortizationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SecuritizationNotesMember" abstract="true" name="SecuritizationNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_DebtInstrumentMandatoryCallPeriod" abstract="false" name="DebtInstrumentMandatoryCallPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_DebtInstruentRedemptionPercentageOfPremium" abstract="false" name="DebtInstruentRedemptionPercentageOfPremium" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_SeniorNotesDue2029Member" abstract="true" name="SeniorNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_OnityMortgageCorporationMember" abstract="true" name="OnityMortgageCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_DebtInstrumentCovenantComplianceConsolidatedTangibleNetWorthatPeriodEnd" abstract="false" name="DebtInstrumentCovenantComplianceConsolidatedTangibleNetWorthatPeriodEnd" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_DebtInstrumentCovenantComplianceMinimumLiquidityRequirement" abstract="false" name="DebtInstrumentCovenantComplianceMinimumLiquidityRequirement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_DebtInstrumentPremiumPercentage" abstract="false" name="DebtInstrumentPremiumPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="onit_TransferredMSRsIncludingESS" abstract="false" name="TransferredMSRsIncludingESS" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AssetsAvailableCashHeldByRegulatedSubsidiaryGuarantors" abstract="false" name="AssetsAvailableCashHeldByRegulatedSubsidiaryGuarantors" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_TransferredMSRsESSFinancingLiabilities" abstract="false" name="TransferredMSRsESSFinancingLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_RemittanceOfAdvancesAndServicingFees" abstract="false" name="RemittanceOfAdvancesAndServicingFees" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_IndemnificationObligationsLiability" abstract="false" name="IndemnificationObligationsLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ChecksHeldForEscheat" abstract="false" name="ChecksHeldForEscheat" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_DueToServicingAndSubservicingInvestors" abstract="false" name="DueToServicingAndSubservicingInvestors" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingAssetsPurchasePriceHoldback" abstract="false" name="ServicingAssetsPurchasePriceHoldback" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ExcessServicingFeesSpreadPayable" abstract="false" name="ExcessServicingFeesSpreadPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ForwardSalesOfReverseLoansMember" abstract="true" name="ForwardSalesOfReverseLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ReverseMortgageLoanInterestRateLockCommitmentsMember" abstract="true" name="ReverseMortgageLoanInterestRateLockCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_InterestRateSwapFuturesAndTBAForwardMBSTradesMember" abstract="true" name="InterestRateSwapFuturesAndTBAForwardMBSTradesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_TRATradesAndInterestRateFuturesMember" abstract="true" name="TRATradesAndInterestRateFuturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_LoanCommitmentTerm" abstract="false" name="LoanCommitmentTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_LoanCommitmentAverageTerm" abstract="false" name="LoanCommitmentAverageTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_LoansHeldForSalePeriodOfSale" abstract="false" name="LoansHeldForSalePeriodOfSale" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_LoanCommitmentToCorrespondents" abstract="false" name="LoanCommitmentToCorrespondents" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_HedgeCoverageRatio" abstract="false" name="HedgeCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_ScheduleofInterestExpenseTable" abstract="true" name="ScheduleofInterestExpenseTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="onit_EscrowMember" abstract="true" name="EscrowMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ScheduleofInterestExpenseLineItems" abstract="true" name="ScheduleofInterestExpenseLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_MarketBasedMember" abstract="true" name="MarketBasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_IncrementalCommonSharesAttributableToCommonStockAwards" abstract="false" name="IncrementalCommonSharesAttributableToCommonStockAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="onit_OriginationsMember" abstract="true" name="OriginationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_NumberOfReportableSegmentsDisclosedByDefinitionFlag" abstract="false" name="NumberOfReportableSegmentsDisclosedByDefinitionFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_ResultsOfOperationsAbstract" abstract="true" name="ResultsOfOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_CorporateOverheadAllocations" abstract="false" name="CorporateOverheadAllocations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_OtherIncomeExpenseAbstract0" abstract="true" name="OtherIncomeExpenseAbstract0" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_TotalAssetsAbstract" abstract="true" name="TotalAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_UnpaidPrincipalBalanceMember" abstract="true" name="UnpaidPrincipalBalanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_LoanCountMember" abstract="true" name="LoanCountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_RegulatoryRequirementEligibleLiquidityForLicensingAndSellerOrServicerObligations" abstract="false" name="RegulatoryRequirementEligibleLiquidityForLicensingAndSellerOrServicerObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_PHHAssetServicesLLCMember" abstract="true" name="PHHAssetServicesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_FederalHousingFinanceAgencyMember" abstract="true" name="FederalHousingFinanceAgencyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MinimumLiquidityRequiredForCompliance" abstract="false" name="MinimumLiquidityRequiredForCompliance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_TotalLiquidity" abstract="false" name="TotalLiquidity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ServicingAndSubservicingFeesBenchmarkMember" abstract="true" name="ServicingAndSubservicingFeesBenchmarkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_DelinquentLoansMember" abstract="true" name="DelinquentLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_PledgedMSRLiabilityExpenseBenchmarkMember" abstract="true" name="PledgedMSRLiabilityExpenseBenchmarkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ServicingAndSubservicingPortfolioBenchmarkMember" abstract="true" name="ServicingAndSubservicingPortfolioBenchmarkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_FloatingRateReverseMortgageLoansMember" abstract="true" name="FloatingRateReverseMortgageLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_ForwardMortgageLoanInterestRateLockCommitmentsMember" abstract="true" name="ForwardMortgageLoanInterestRateLockCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_AdditionalBorrowingCapacityToBorrowers" abstract="false" name="AdditionalBorrowingCapacityToBorrowers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_FundedAmountInConnectionWithReverseMortgageLoans" abstract="false" name="FundedAmountInConnectionWithReverseMortgageLoans" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ShortTermCommitmentsToLend" abstract="false" name="ShortTermCommitmentsToLend" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ThresholdPercentageOfOutstandingPrincipalBalanceOnMaximumClaimAmount" abstract="false" name="ThresholdPercentageOfOutstandingPrincipalBalanceOnMaximumClaimAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_ConcentrationRiskAmount" abstract="false" name="ConcentrationRiskAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LockoutRestrictionsForSellingOrTransferringMortgageServicingRightsPercentage" abstract="false" name="LockoutRestrictionsForSellingOrTransferringMortgageServicingRightsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="onit_ActiveMember" abstract="true" name="ActiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_InactiveMember" abstract="true" name="InactiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_HomeEquityConversionMortgageBackedSecurityMaximumClaimAmountAxis" abstract="true" name="HomeEquityConversionMortgageBackedSecurityMaximumClaimAmountAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="onit_HomeEquityConversionMortgageBackedSecurityMaximumClaimAmountDomain" abstract="true" name="HomeEquityConversionMortgageBackedSecurityMaximumClaimAmountDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MaximumClaimAmountLessThan92Member" abstract="true" name="MaximumClaimAmountLessThan92Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MaximumClaimAmountGreaterThan92AndLessThan95Member" abstract="true" name="MaximumClaimAmountGreaterThan92AndLessThan95Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_MaximumClaimAmountGreaterThan95AndLessThan98Member" abstract="true" name="MaximumClaimAmountGreaterThan95AndLessThan98Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="onit_SecuritizedHomeEquityConversionMortgageBackedSecurity" abstract="false" name="SecuritizedHomeEquityConversionMortgageBackedSecurity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_LongTermPurchaseCommitmentRollForward" abstract="true" name="LongTermPurchaseCommitmentRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_HomeEquityConversionMortgageBackedSecurityRepurchasesOutstandingValue" abstract="false" name="HomeEquityConversionMortgageBackedSecurityRepurchasesOutstandingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_AmountofAdditionsToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" abstract="false" name="AmountofAdditionsToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_RecoveriesRelatedToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" abstract="false" name="RecoveriesRelatedToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_TransfersRelatedToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" abstract="false" name="TransfersRelatedToHomeEquityConversionMortgageBackedSecurityRepurchasesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ChangeInValueOfHomeEquityConversionMortgageBackedSecurityRepurchasesValue" abstract="false" name="ChangeInValueOfHomeEquityConversionMortgageBackedSecurityRepurchasesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ActiveHECMLoansUPBExcludedDirectlyAssigned" abstract="false" name="ActiveHECMLoansUPBExcludedDirectlyAssigned" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_WarrantyRepurchaseDemandsUnpaidPrincipalBalance" abstract="false" name="WarrantyRepurchaseDemandsUnpaidPrincipalBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_WarrantyRepurchaseDemandsNumberOfLoans" abstract="false" name="WarrantyRepurchaseDemandsNumberOfLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="onit_IndemnificationObligationsLiabilityRollForward" abstract="true" name="IndemnificationObligationsLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="onit_RepresentationWarrantyAndCompensatoryFeesObligations" abstract="false" name="RepresentationWarrantyAndCompensatoryFeesObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_ProvisionForRepresentationAndWarrantyObligations" abstract="false" name="ProvisionForRepresentationAndWarrantyObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_IndemnificationObligationsLiabilityReserves" abstract="false" name="IndemnificationObligationsLiabilityReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_IndemnificationObligationsLiabilityChargeOffs" abstract="false" name="IndemnificationObligationsLiabilityChargeOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="onit_NumberOfReverseMortgageServicingRightsSoldNumberOfLoans" abstract="false" name="NumberOfReverseMortgageServicingRightsSoldNumberOfLoans" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="onit_SubservicingAgreementTerm" abstract="false" name="SubservicingAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_SubservicingAgreementAutomaticRenewalTerm" abstract="false" name="SubservicingAgreementAutomaticRenewalTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="onit_SubservicingAgreementNoticeOfNonRenewalPeriodPriorToExpiration" abstract="false" name="SubservicingAgreementNoticeOfNonRenewalPeriodPriorToExpiration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
</xs:schema>
