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  <xs:element id="snda_DeferredIssuanceCostsPolicyTextBlock" abstract="false" name="DeferredIssuanceCostsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="snda_AssetAcquisitionsPolicyTextBlock" abstract="false" name="AssetAcquisitionsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="snda_EmployeeRetentionCreditsPolicyTextBlock" abstract="false" name="EmployeeRetentionCreditsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="snda_ManagedOnBehalfOfThirdPartiesMember" abstract="true" name="ManagedOnBehalfOfThirdPartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PalatineJVMember" abstract="true" name="PalatineJVMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AggregateCapacityOfResidentsInRealEstateProperties" abstract="false" name="AggregateCapacityOfResidentsInRealEstateProperties" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_OwnershipOfInvestmentInJointVenturePercentage" abstract="false" name="OwnershipOfInvestmentInJointVenturePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_NumberOfJointVenturesEnteredInto" abstract="false" name="NumberOfJointVenturesEnteredInto" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_CNLHealthcarePropertiesInc.CHP.Member" abstract="true" name="CNLHealthcarePropertiesInc.CHP.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_CHPInc.Member" abstract="true" name="CHPInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SONIDAInc.Member" abstract="true" name="SONIDAInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SeniorSecuredRevolvingCreditFacilityMember" abstract="true" name="SeniorSecuredRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_ARCreditAgreementMember" abstract="true" name="ARCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PermanentTermLoansMember" abstract="true" name="PermanentTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_BridgeFacilityMember" abstract="true" name="BridgeFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SeniorSecuredTermLoanMember" abstract="true" name="SeniorSecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_ConversantInvestmentAgreementMember" abstract="true" name="ConversantInvestmentAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SilkInvestmentAgreementMember" abstract="true" name="SilkInvestmentAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentTrancheAxis" abstract="true" name="DebtInstrumentTrancheAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="snda_DebtInstrumentTrancheDomain" abstract="true" name="DebtInstrumentTrancheDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TrancheOneMember" abstract="true" name="TrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TrancheTwoMember" abstract="true" name="TrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_BusinessCombinationRightToReceiveCashPerShare" abstract="false" name="BusinessCombinationRightToReceiveCashPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="snda_BusinessCombinationRightToReceiveCommonStockPerShare" abstract="false" name="BusinessCombinationRightToReceiveCommonStockPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="snda_BusinessCombinationRightToReceiveCommonStockValuePerShare" abstract="false" name="BusinessCombinationRightToReceiveCommonStockValuePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="snda_BusinessCombinationTransactionReferencePricePercentage" abstract="false" name="BusinessCombinationTransactionReferencePricePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_BusinessCombinationTransactionReferencePricePerShare" abstract="false" name="BusinessCombinationTransactionReferencePricePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="snda_BusinessCombinationTerminationFeePartialPayment" abstract="false" name="BusinessCombinationTerminationFeePartialPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DebtInstrumentAccordionFeatureLimitIncrease" abstract="false" name="DebtInstrumentAccordionFeatureLimitIncrease" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_BusinessCombinationInvestmentAgreementLiableExpensesMaximum" abstract="false" name="BusinessCombinationInvestmentAgreementLiableExpensesMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_PropertyTaxAndInsuranceReservesMember" abstract="true" name="PropertyTaxAndInsuranceReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_LenderReserveMember" abstract="true" name="LenderReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_CapitalExpenditureReserveMember" abstract="true" name="CapitalExpenditureReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DepositsPursuantToOutstandingLettersOfCreditMember" abstract="true" name="DepositsPursuantToOutstandingLettersOfCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_OtherReservesMember" abstract="true" name="OtherReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AccountingPoliciesTable" abstract="true" name="AccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="snda_HousingAndSupportServicesMember" abstract="true" name="HousingAndSupportServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PropertiesMember" abstract="true" name="PropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snda_NumberOfImpairedAssets" abstract="false" name="NumberOfImpairedAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_ResidencyAgreementsTerminationNoticePeriod" abstract="false" name="ResidencyAgreementsTerminationNoticePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_ConcentrationOfCreditRiskResidentReceivablesPeriod" abstract="false" name="ConcentrationOfCreditRiskResidentReceivablesPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_ProceedsFromEmployeeRetentionCredit" abstract="false" name="ProceedsFromEmployeeRetentionCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_PercentageOfVotingRights" abstract="false" name="PercentageOfVotingRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_CommunityFeesMember" abstract="true" name="CommunityFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AncillaryServicesMember" abstract="true" name="AncillaryServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TheJasperAcquisitionMember" abstract="true" name="TheJasperAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AlpharettaAcquisitionMember" abstract="true" name="AlpharettaAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_EastLakeAcquisitionMember" abstract="true" name="EastLakeAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_CincinnatiAcquisitionMember" abstract="true" name="CincinnatiAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PurchaseAndSaleAgreementMember" abstract="true" name="PurchaseAndSaleAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PalmAcquisitionMember" abstract="true" name="PalmAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_MacedoniaAssetAcquisitionMember" abstract="true" name="MacedoniaAssetAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SeniorHousingCommunitiesMember" abstract="true" name="SeniorHousingCommunitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_A2025MortgageLoanMember" abstract="true" name="A2025MortgageLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_SeniorMortgageDebtMember" abstract="true" name="SeniorMortgageDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_InterestRateCapTwoMember" abstract="true" name="InterestRateCapTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AmTrustMember" abstract="true" name="AmTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_NumberOfRealEstatePropertiesAcquired" abstract="false" name="NumberOfRealEstatePropertiesAcquired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DebtInstrumentCapitalExpenditureInvestment" abstract="false" name="DebtInstrumentCapitalExpenditureInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DebtInstrumentInterestWaiverTerm" abstract="false" name="DebtInstrumentInterestWaiverTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_AssetAcquisitionPropertyPlantAndEquipmentAcquired" abstract="false" name="AssetAcquisitionPropertyPlantAndEquipmentAcquired" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_NumberOfCommunities" abstract="false" name="NumberOfCommunities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_AssetAcquisitionOtherNoncurrentAssetsAcquired" abstract="false" name="AssetAcquisitionOtherNoncurrentAssetsAcquired" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_AssetAcquisitionOtherNoncurrentLiabilitiesAcquired" abstract="false" name="AssetAcquisitionOtherNoncurrentLiabilitiesAcquired" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_VentureOwnershipPercentage" abstract="false" name="VentureOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_NumberOfPropertiesHeldForSale" abstract="false" name="NumberOfPropertiesHeldForSale" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OtherCommunityHeldForSaleMember" abstract="true" name="OtherCommunityHeldForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_NumberOfImpairedAssetsNotRecoverable" abstract="false" name="NumberOfImpairedAssetsNotRecoverable" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_OtherLongLivedTangibleAssetMember" abstract="true" name="OtherLongLivedTangibleAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_FixedRateMortgagesMember" abstract="true" name="FixedRateMortgagesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_VariableRateMortgagesMember" abstract="true" name="VariableRateMortgagesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_NotesPayableConsolidatedVIEMember" abstract="true" name="NotesPayableConsolidatedVIEMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_FixedRateMortgageNotesMember" abstract="true" name="FixedRateMortgageNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentVariableRateAtPeriodEnd" abstract="false" name="DebtInstrumentVariableRateAtPeriodEnd" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_A2025AllyTermLoanMember" abstract="true" name="A2025AllyTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentFeeAmountPercentage" abstract="false" name="DebtInstrumentFeeAmountPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_DebtInstrumentFaceAmountAdvance" abstract="false" name="DebtInstrumentFaceAmountAdvance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DebtInstrumentNumberOfPropertiesUnderLoan" abstract="false" name="DebtInstrumentNumberOfPropertiesUnderLoan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DebtInstrumentNumberOfAdditionalDraws" abstract="false" name="DebtInstrumentNumberOfAdditionalDraws" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DebtInstrumentBasisSpreadOnVariableRatePerformanceBasedStepDownRate" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRatePerformanceBasedStepDownRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_DebtInstrumentAccordionFeatureIncreaseLimitMaximum" abstract="false" name="DebtInstrumentAccordionFeatureIncreaseLimitMaximum" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_NumberOfNewlyAcquiredCommunities" abstract="false" name="NumberOfNewlyAcquiredCommunities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DebtInstrumentAccordionFeatureHighestBorrowingCapacity" abstract="false" name="DebtInstrumentAccordionFeatureHighestBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_LineOfCreditFacilityDecreaseAmountTerminated" abstract="false" name="LineOfCreditFacilityDecreaseAmountTerminated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OmnibusAgreementMember" abstract="true" name="OmnibusAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_FannieMaeLoanMember" abstract="true" name="FannieMaeLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentGuarantyPayment" abstract="false" name="DebtInstrumentGuarantyPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DebtInstrumentPeriodicPrepayment" abstract="false" name="DebtInstrumentPeriodicPrepayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_TexasDPOMember" abstract="true" name="TexasDPOMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentRestructuringFee" abstract="false" name="DebtInstrumentRestructuringFee" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DebtInstrumentDiscountRate" abstract="false" name="DebtInstrumentDiscountRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_ProtectiveLifeInsuranceCompanyMember" abstract="true" name="ProtectiveLifeInsuranceCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AllyBankMember" abstract="true" name="AllyBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_NumberOfPropertiesCoveredUnderLoan" abstract="false" name="NumberOfPropertiesCoveredUnderLoan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_MacedoniaNewLoanMember" abstract="true" name="MacedoniaNewLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TarponSpringsFloridaSeniorLivingCommunityMember" abstract="true" name="TarponSpringsFloridaSeniorLivingCommunityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_DebtInstrumentNumberOfExtensionOptions" abstract="false" name="DebtInstrumentNumberOfExtensionOptions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_DebtInstrumentExtensionPeriod" abstract="false" name="DebtInstrumentExtensionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_DebtInstrumentScheduledPrincipalPaymentWaivePeriod" abstract="false" name="DebtInstrumentScheduledPrincipalPaymentWaivePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_InsuranceNotesPayableIssued2025Member" abstract="true" name="InsuranceNotesPayableIssued2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_InsuranceNotesPayableIssued2024Member" abstract="true" name="InsuranceNotesPayableIssued2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_EquityTable" abstract="true" name="EquityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="snda_PublicOfferingsMember" abstract="true" name="PublicOfferingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PublicOfferingsNetOfUnderwritingMember" abstract="true" name="PublicOfferingsNetOfUnderwritingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_AtTheMarketSalesAgreementMember" abstract="true" name="AtTheMarketSalesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PrivatePlacementTrancheOneMember" abstract="true" name="PrivatePlacementTrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PrivatePlacementTrancheTwoMember" abstract="true" name="PrivatePlacementTrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_ConversantDallasParkwayALPAndConversantDallasParkwayBLPMember" abstract="true" name="ConversantDallasParkwayALPAndConversantDallasParkwayBLPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_EquityLineItems" abstract="true" name="EquityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snda_AtTheMarketSalesAgreementOfferingPriceMaximum" abstract="false" name="AtTheMarketSalesAgreementOfferingPriceMaximum" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_AtTheMarketSalesAgreementCommission" abstract="false" name="AtTheMarketSalesAgreementCommission" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_SaleOfStockNumberOfTranches" abstract="false" name="SaleOfStockNumberOfTranches" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_ConversionOfConvertibleSecuritiesThresholdPercentageOfVolumeWeightedAverageSharePrice" abstract="false" name="ConversionOfConvertibleSecuritiesThresholdPercentageOfVolumeWeightedAverageSharePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_ConversionOfConvertibleSecuritiesThresholdConsecutiveTradingDays" abstract="false" name="ConversionOfConvertibleSecuritiesThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="snda_PreferredStockLiquidationPreferencePercentage" abstract="false" name="PreferredStockLiquidationPreferencePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snda_VotingRightsPercentageOfTotalVotingStockThreshold" abstract="false" name="VotingRightsPercentageOfTotalVotingStockThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_TemporaryEquityAccretionOfDividendsShares" abstract="false" name="TemporaryEquityAccretionOfDividendsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="snda_AdjustmentsToAdditionalPaidInCapitalUndeclaredDividends" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalUndeclaredDividends" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_PerformanceBasedRestrictedStockUnitsMember" abstract="true" name="PerformanceBasedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TimeBasedRestrictedStockAwardsMember" abstract="true" name="TimeBasedRestrictedStockAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_PerformanceBasedRestrictedStockAwardsMember" abstract="true" name="PerformanceBasedRestrictedStockAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_MarketBasedRestrictedStockAwardsMember" abstract="true" name="MarketBasedRestrictedStockAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfTranchesForGrantsInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfTranchesForGrantsInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_TimeBasedRestrictedStockUnitsMember" abstract="true" name="TimeBasedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_EffectiveIncomeTaxRateReconciliationPermanentImpactOfEmployeeRetentionCreditClaimsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationPermanentImpactOfEmployeeRetentionCreditClaimsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_EffectiveIncomeTaxRateReconciliationPermanentImpactOfEmployeeRetentionCreditClaimsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationPermanentImpactOfEmployeeRetentionCreditClaimsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_IncomeTaxesTable" abstract="true" name="IncomeTaxesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="snda_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snda_PermanentTaxDifferencesCompensationLimitationThroughTaxAct" abstract="false" name="PermanentTaxDifferencesCompensationLimitationThroughTaxAct" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DeferredTaxAssetsOperatingLossCarryforwardsDomesticAndStateAndLocal" abstract="false" name="DeferredTaxAssetsOperatingLossCarryforwardsDomesticAndStateAndLocal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCredit" abstract="false" name="OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCreditTaxableIncomeRecognized" abstract="false" name="OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCreditTaxableIncomeRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCreditTrueUpAdjustment" abstract="false" name="OperatingLossCarryforwardDomesticIncreaseDecreaseFromEmployeeRetentionCreditTrueUpAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_OperatingLossCarryforwardSubjectToExpiration" abstract="false" name="OperatingLossCarryforwardSubjectToExpiration" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_ConversantInvestorsMember" abstract="true" name="ConversantInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_ManagementFeesMember" abstract="true" name="ManagementFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_StoneJointVentureMember" abstract="true" name="StoneJointVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_NumberOfJointVenturesInWhichCompanyProvidesReportingServices" abstract="false" name="NumberOfJointVenturesInWhichCompanyProvidesReportingServices" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snda_FairValueOfImpairedPropertyAndEquipment" abstract="false" name="FairValueOfImpairedPropertyAndEquipment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_AccountsReceivableProvisionForDoubtfulAccountsNetOfRecoveries" abstract="false" name="AccountsReceivableProvisionForDoubtfulAccountsNetOfRecoveries" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_AccountsReceivableAllowanceForCreditLossWriteoffRecovery" abstract="false" name="AccountsReceivableAllowanceForCreditLossWriteoffRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_TotalCommunityOperatingExpenseMember" abstract="true" name="TotalCommunityOperatingExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_LaborExpenseMember" abstract="true" name="LaborExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_FoodExpenseMember" abstract="true" name="FoodExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_UtilitiesExpenseMember" abstract="true" name="UtilitiesExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_OtherOperatingExpenseMember" abstract="true" name="OtherOperatingExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snda_CommunityOperatingExpense" abstract="false" name="CommunityOperatingExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_MembershipInterestPurchaseAgreementOwnershipPercentage" abstract="false" name="MembershipInterestPurchaseAgreementOwnershipPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snda_MembershipInterestPurchaseAgreementOutstandingMortgageBalance" abstract="false" name="MembershipInterestPurchaseAgreementOutstandingMortgageBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snda_PaymentsForConversionOfStock" abstract="false" name="PaymentsForConversionOfStock" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
