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  <xsd:element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOriginatedServicing" id="mbin_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOriginatedServicing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSubtractionsAbstract" id="mbin_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSubtractionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ImpairedLoansFairValueDisclosure" id="mbin_ImpairedLoansFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="InterestReceivableFairValueDisclosure" id="mbin_InterestReceivableFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="InterestPayableFairValueDisclosure" id="mbin_InterestPayableFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="MortgageWarehouseLinesOfCreditPortfolioSegmentMember" id="mbin_MortgageWarehouseLinesOfCreditPortfolioSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CorporateReconcilingItemsAndEliminationsMember" id="mbin_CorporateReconcilingItemsAndEliminationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfDepositsTableTextBlock" id="mbin_ScheduleOfDepositsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TimeDeposits250000OrMore" id="mbin_TimeDeposits250000OrMore" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ResidentialLoansInProcessOfForeclosure" id="mbin_ResidentialLoansInProcessOfForeclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherAssetsAndReceivablesDisclosureTextBlock" id="mbin_OtherAssetsAndReceivablesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ServicingFeesAmount" id="mbin_ServicingFeesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NonExecutiveDirectorMember" id="mbin_NonExecutiveDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementAwardForAnnualFee" id="mbin_ShareBasedCompensationArrangementAwardForAnnualFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceOfPreferredStockGross" id="mbin_ProceedsFromIssuanceOfPreferredStockGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentOfUnderwritingDiscounts" id="mbin_PaymentOfUnderwritingDiscounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CollateralDependentImpairedLoansMember" id="mbin_CollateralDependentImpairedLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockTable" id="mbin_SaleOfStockTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfStockLineItems" id="mbin_SaleOfStockLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ImpairedLoansMeasurementInputMarketabilityDiscountRate" id="mbin_ImpairedLoansMeasurementInputMarketabilityDiscountRate" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PublicOfferingMember" id="mbin_PublicOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockDepositoryShares" id="mbin_PreferredStockDepositoryShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="StockIssuedDuringPeriodDepositarySharesNewIssues" id="mbin_StockIssuedDuringPeriodDepositarySharesNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DepositarySharesEquivalentPreferredStockInterestPerShare" id="mbin_DepositarySharesEquivalentPreferredStockInterestPerShare" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockLiquidationPreferenceDepositaryShares" id="mbin_PreferredStockLiquidationPreferenceDepositaryShares" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BankingSegmentMember" id="mbin_BankingSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MortgageLoansInProcessOfSecuritizationAbstract" id="mbin_MortgageLoansInProcessOfSecuritizationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MortgageLoansInProcessOfSecuritizationTextBlock" id="mbin_MortgageLoansInProcessOfSecuritizationTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockDisclosureAbstract" id="mbin_PreferredStockDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FederalReserveDiscountWindowBorrowingsMember" id="mbin_FederalReserveDiscountWindowBorrowingsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaycheckProtectionProgramLiquidityFacilityMember" id="mbin_PaycheckProtectionProgramLiquidityFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonStockDisclosureAbstract" id="mbin_CommonStockDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockSeriesB6PercentMember" id="mbin_PreferredStockSeriesB6PercentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferredStockSeriesC6PercentMember" id="mbin_PreferredStockSeriesC6PercentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherBorrowingsFairValueDisclosure" id="mbin_OtherBorrowingsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AmortizationOfMortgageServicingRightsAndFairValueAdjustments" id="mbin_AmortizationOfMortgageServicingRightsAndFairValueAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="VariableInterestEntityDisclosureAbstract" id="mbin_VariableInterestEntityDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeGainOnDerivativeGross" id="mbin_DerivativeGainOnDerivativeGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DerivativeLossOnDerivativeGross" id="mbin_DerivativeLossOnDerivativeGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AmericanFinancialExchangeBorrowingMember" id="mbin_AmericanFinancialExchangeBorrowingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsToAcquireLowIncomeHousingTaxCreditForSale" id="mbin_PaymentsToAcquireLowIncomeHousingTaxCreditForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromSaleOfLowIncomeTaxCredit" id="mbin_ProceedsFromSaleOfLowIncomeTaxCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="JointVenturesAbstract" id="mbin_JointVenturesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentInDebtFunds" id="mbin_InvestmentInDebtFunds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ExpectedAdditionalInvestmentInJointVenture" id="mbin_ExpectedAdditionalInvestmentInJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="Dividends6PercentSeriesCPreferredStock" id="mbin_Dividends6PercentSeriesCPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAccruedInterest" id="mbin_DebtSecuritiesAvailableForSaleAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="AccruedInterestOnLoansReceivable" id="mbin_AccruedInterestOnLoansReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ScheduleOfAllowanceForCreditLossOnLoanMethodologyByLoanPortfolioSegmentTableTextBlock" id="mbin_ScheduleOfAllowanceForCreditLossOnLoanMethodologyByLoanPortfolioSegmentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfBalanceSheetIncomeStatementAndCashFlowDetailRegardingOperatingLeasesTableTextBlock" id="mbin_ScheduleOfBalanceSheetIncomeStatementAndCashFlowDetailRegardingOperatingLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfAllowanceForCreditLossAllocatedToCollateralDependentLoansTableTextBlock" id="mbin_ScheduleOfAllowanceForCreditLossAllocatedToCollateralDependentLoansTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccountsReceivableOrEquipmentMember" id="mbin_AccountsReceivableOrEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherCollateralizedAssetsMember" id="mbin_OtherCollateralizedAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MultiFamilyFinancingMember" id="mbin_MultiFamilyFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HealthCareFinancingMember" id="mbin_HealthCareFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestRateSwapOnCustomersBehalfMember" id="mbin_InterestRateSwapOnCustomersBehalfMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProvisionForCreditLossesFreddieMacSecuritizationTransaction" id="mbin_ProvisionForCreditLossesFreddieMacSecuritizationTransaction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PreferredStockSeriesD8.25PercentMember" id="mbin_PreferredStockSeriesD8.25PercentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable" id="mbin_InterestIncomeDebtSecuritiesAvailableForSaleOperatingTaxable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtSecuritiesHeldToMaturityAccruedInterest" id="mbin_DebtSecuritiesHeldToMaturityAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CommonStockDisclosureTextBlock" id="mbin_CommonStockDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Dividends8.25PercentSeriesDPreferredStock" id="mbin_Dividends8.25PercentSeriesDPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MortgageBackedSecuritiesIssuedByPrivateEnterprisesMultiFamilyMember" id="mbin_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMultiFamilyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MortgageBackedSecuritiesIssuedByPrivateEnterprisesResidentialMember" id="mbin_MortgageBackedSecuritiesIssuedByPrivateEnterprisesResidentialMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeniorCreditLinkedNotesDueMay262028Member" id="mbin_SeniorCreditLinkedNotesDueMay262028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonOwnerOccupiedCommercialRealEstateMember" id="mbin_NonOwnerOccupiedCommercialRealEstateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DemandDepositsInterestBearing" id="mbin_DemandDepositsInterestBearing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EmployeeStockOwnershipPlan2020Member" id="mbin_EmployeeStockOwnershipPlan2020Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RepaymentsOfCreditLinkedNotes" id="mbin_RepaymentsOfCreditLinkedNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RevolvingLinesOfCreditCollateralizedByMortgageServicingRights" id="mbin_RevolvingLinesOfCreditCollateralizedByMortgageServicingRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SmallBusinessAssociationLoansMember" id="mbin_SmallBusinessAssociationLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBuffer" id="mbin_TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" id="mbin_TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CapitalRequiredForCapitalAdequacyWithBuffer" id="mbin_CapitalRequiredForCapitalAdequacyWithBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" id="mbin_CapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CommonEquityTierOneCapitalRequiredForCapitalAdequacyWithBuffer" id="mbin_CommonEquityTierOneCapitalRequiredForCapitalAdequacyWithBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" id="mbin_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="TierOneLeverageCapitalRequiredForCapitalAdequacyWithBuffer" id="mbin_TierOneLeverageCapitalRequiredForCapitalAdequacyWithBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TierOneLeverageCapitalRequiredForCapitalAdequacyWithBufferToAverageAssets" id="mbin_TierOneLeverageCapitalRequiredForCapitalAdequacyWithBufferToAverageAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="LowIncomeHousingCreditInvestmentsMember" id="mbin_LowIncomeHousingCreditInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtFundsMember" id="mbin_DebtFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherBorrowingsMember" id="mbin_OtherBorrowingsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MortgageBackedSecuritiesIssuedByUsGovernmentSponsoredEnterprisesNoFairValueOptionMember" id="mbin_MortgageBackedSecuritiesIssuedByUsGovernmentSponsoredEnterprisesNoFairValueOptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MortgageBackedSecuritiesIssuedByUsGovernmentSponsoredEnterprisesFairValueOptionMember" id="mbin_MortgageBackedSecuritiesIssuedByUsGovernmentSponsoredEnterprisesFairValueOptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GainLossOnSaleOfLoansMember" id="mbin_GainLossOnSaleOfLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MortgageServicingRightsMember" id="mbin_MortgageServicingRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfDelinquentLoansClassifiedAsHeldForSale" id="mbin_NumberOfDelinquentLoansClassifiedAsHeldForSale" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PledgedCollateralToSecureObligations" id="mbin_PledgedCollateralToSecureObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="VariableInterestEntityInvestmentsAmount" id="mbin_VariableInterestEntityInvestmentsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="VariableInterestEntitySecuritiesAmount" id="mbin_VariableInterestEntitySecuritiesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfWarehouseLoanCustomers" id="mbin_NumberOfWarehouseLoanCustomers" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancingReceivables30To89DaysPastDueMember" id="mbin_FinancingReceivables30To89DaysPastDueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MortgageBackedSecuritiesIssuedByPrivateEnterprisesHealthCareMember" id="mbin_MortgageBackedSecuritiesIssuedByPrivateEnterprisesHealthCareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScottA.EvansMember" id="mbin_ScottA.EvansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InterestIncomeFromFederalHomeLoanBankAdvancesAndOtherEquitySecuritiesDividends" id="mbin_InterestIncomeFromFederalHomeLoanBankAdvancesAndOtherEquitySecuritiesDividends" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="QualifiedAffordableHousingDisclosureAbstract" id="mbin_QualifiedAffordableHousingDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfQualifiedAffordableHousingInvestmentsAndUnfundedCommitmentsTableTextBlock" id="mbin_ScheduleOfQualifiedAffordableHousingInvestmentsAndUnfundedCommitmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfQualifiedAffordableHousingAmortizationExpenseAndTaxCreditsRecognizedTableTextBlock" id="mbin_ScheduleOfQualifiedAffordableHousingAmortizationExpenseAndTaxCreditsRecognizedTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LowIncomeHousingTaxCreditLimitedLiabilityEntitiesMember" id="mbin_LowIncomeHousingTaxCreditLimitedLiabilityEntitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LowIncomeHousingTaxCreditLimitedLiabilityEntitiesProjectsForFutureSyndicationMember" id="mbin_LowIncomeHousingTaxCreditLimitedLiabilityEntitiesProjectsForFutureSyndicationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentProportionalAmortizationMethodAndConsolidatedMethodAmount" id="mbin_InvestmentProportionalAmortizationMethodAndConsolidatedMethodAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentProgramProportionalAmortizationMethodAndConsolidatedMethodCommitment" id="mbin_InvestmentProgramProportionalAmortizationMethodAndConsolidatedMethodCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MeasurementInputEarningsRateOnEscrowsMember" id="mbin_MeasurementInputEarningsRateOnEscrowsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SyndicationAndAssetManagementFees" id="mbin_SyndicationAndAssetManagementFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PreferredStockSeriesE7.625PercentMember" id="mbin_PreferredStockSeriesE7.625PercentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CreditRiskTransferPremiumExpense" id="mbin_CreditRiskTransferPremiumExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BeneficialInterestsReceivedInExchangeForLowIncomeHousingTaxCreditsSold" id="mbin_BeneficialInterestsReceivedInExchangeForLowIncomeHousingTaxCreditsSold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapPrincipalAmount" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapPrincipalAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapProtectedLossesPercentage" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapProtectedLossesPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapPremiumOnNotionalAmountPercentage" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapPremiumOnNotionalAmountPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapReplenishAmount" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapReplenishAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapReplenishmentPeriod" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapReplenishmentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SignificantNonCashItemsAbstract" id="mbin_SignificantNonCashItemsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueAdjustmentOfServicingAssets" id="mbin_FairValueAdjustmentOfServicingAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CoreDemandDeposits" id="mbin_CoreDemandDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BrokeredDemandDeposits" id="mbin_BrokeredDemandDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CoreSavingsDeposits" id="mbin_CoreSavingsDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BrokeredSavingsDeposits" id="mbin_BrokeredSavingsDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CoreCertificateDeposits" id="mbin_CoreCertificateDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BrokeredCertificateDeposits" id="mbin_BrokeredCertificateDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="Dividends7.625PercentSeriesEPreferredStock" id="mbin_Dividends7.625PercentSeriesEPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="VariableInterestEntityLoanAmount" id="mbin_VariableInterestEntityLoanAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentProgramProportionalAmortizationMethodAppliedIncomeTaxCreditAndOtherTaxBenefitAmortizationStatementOfCashFlowsExtensibleEnumerationNotDisclosedFlag" id="mbin_InvestmentProgramProportionalAmortizationMethodAppliedIncomeTaxCreditAndOtherTaxBenefitAmortizationStatementOfCashFlowsExtensibleEnumerationNotDisclosedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InvestmentProgramProportionalAmortizationMethodElectedIncomeTaxCreditAndOtherIncomeTaxBenefitBeforeAmortizationStatementOfCashFlowsExtensibleEnumerationNotDisclosedFlag" id="mbin_InvestmentProgramProportionalAmortizationMethodElectedIncomeTaxCreditAndOtherIncomeTaxBenefitBeforeAmortizationStatementOfCashFlowsExtensibleEnumerationNotDisclosedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExciseTaxOnPreferredStockRedemption" id="mbin_ExciseTaxOnPreferredStockRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ChangeInPayableForLimitedPartnershipInterestOfLlc" id="mbin_ChangeInPayableForLimitedPartnershipInterestOfLlc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LiabilitiesAccruedForExciseTaxOnPreferredStockRepurchase" id="mbin_LiabilitiesAccruedForExciseTaxOnPreferredStockRepurchase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ChangeInPrepaidAssetsForPreferredStockRepurchase" id="mbin_ChangeInPrepaidAssetsForPreferredStockRepurchase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DepositsReceivedOnLoanOrigination" id="mbin_DepositsReceivedOnLoanOrigination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FederalHomeLoanBankAdvancesOptionToCancelAgreementTerm" id="mbin_FederalHomeLoanBankAdvancesOptionToCancelAgreementTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FederalHomeLoanBankAdvancesOptionToCancelAgreementNoticePeriod" id="mbin_FederalHomeLoanBankAdvancesOptionToCancelAgreementNoticePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableModifiedInPeriodAmountOfSpecificReserves" id="mbin_FinancingReceivableModifiedInPeriodAmountOfSpecificReserves" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuanceCostsCapitalized" id="mbin_StockIssuanceCostsCapitalized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EquityIncentivePlan2017Member" id="mbin_EquityIncentivePlan2017Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StockIssuedDuringPeriodValueShareBasedCompensationNet" id="mbin_StockIssuedDuringPeriodValueShareBasedCompensationNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MortgageBackedSecuritizationMember" id="mbin_MortgageBackedSecuritizationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CreditProtectionPercentageOnLosses" id="mbin_CreditProtectionPercentageOnLosses" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FreestandingCreditEnhancementsCreditDefaultSwapRecoveryAssetAmount" id="mbin_FreestandingCreditEnhancementsCreditDefaultSwapRecoveryAssetAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TermExtensionAndPaymentDelayMember" id="mbin_TermExtensionAndPaymentDelayMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherPolicyTextBlock" id="mbin_OtherPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfQualifiedAffordableHousingInvestmentsSupplementalCashFlowInformationTableTextBlock" id="mbin_ScheduleOfQualifiedAffordableHousingInvestmentsSupplementalCashFlowInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="QualifiedAffordableHousingInvestmentsObtainedInExchangeForFundingCommitments" id="mbin_QualifiedAffordableHousingInvestmentsObtainedInExchangeForFundingCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DepositsReceivedOnReductionOfFundingCommitments" id="mbin_DepositsReceivedOnReductionOfFundingCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="HeldToMaturitySecuritiesUnderlyingLoansDelinquencyRate" id="mbin_HeldToMaturitySecuritiesUnderlyingLoansDelinquencyRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DepositsReceivedUponPurchaseOfLihtcs" id="mbin_DepositsReceivedUponPurchaseOfLihtcs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LesseeOperatingLeaseLeaseNotYetCommencedRightOfUseAsset" id="mbin_LesseeOperatingLeaseLeaseNotYetCommencedRightOfUseAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LesseeOperatingLeaseLeaseNotYetCommencedLiability" id="mbin_LesseeOperatingLeaseLeaseNotYetCommencedLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NewYorkStateMember" id="mbin_NewYorkStateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewYorkCityMember" id="mbin_NewYorkCityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FixedRateCommunityDevelopmentAdvanceDebtAgreementFederalHomeLoanBankMember" id="mbin_FixedRateCommunityDevelopmentAdvanceDebtAgreementFederalHomeLoanBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewVariableRateDebtAgreementOneFederalHomeLoanBankMember" id="mbin_NewVariableRateDebtAgreementOneFederalHomeLoanBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewVariableRateDebtAgreementTwoFederalHomeLoanBankMember" id="mbin_NewVariableRateDebtAgreementTwoFederalHomeLoanBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherMiscellaneousNoninterestExpense" id="mbin_OtherMiscellaneousNoninterestExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PaymentsToAcquireTransferableEnergyTaxCredits" id="mbin_PaymentsToAcquireTransferableEnergyTaxCredits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TransferableEnergyTaxCreditsAcquiredAmount" id="mbin_TransferableEnergyTaxCreditsAcquiredAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromSaleLoanHeldForSaleAndPrincipalCollected" id="mbin_ProceedsFromSaleLoanHeldForSaleAndPrincipalCollected" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfRepurchaseOfSharesTableTextBlock" id="mbin_ScheduleOfRepurchaseOfSharesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SharesRepurchasedPricePerShare" id="mbin_SharesRepurchasedPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NewMarketFundMember" id="mbin_NewMarketFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoansProvidedForSaleOfLihtcs" id="mbin_LoansProvidedForSaleOfLihtcs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AmericanExchangeFinancialMember" id="mbin_AmericanExchangeFinancialMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CreditRiskTransferPremiumExpenseMember" id="mbin_CreditRiskTransferPremiumExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
