<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2023 Workiva-->
<!--r:2eaa9b89-33a5-4d9e-afee-2380f1edf3b9,g:58b2e239-10cd-4d7e-8433-977026b84aad-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:ari="http://www.apolloreit.com/20230331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.apolloreit.com/20230331">
  <xs:import namespace="http://fasb.org/srt/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap-sup/2022q3" schemaLocation="https://xbrl.fasb.org/us-gaap/2022q3/us-gaap-sup-2022q3.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2022" schemaLocation="https://xbrl.sec.gov/country/2022/country-2022.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2022" schemaLocation="https://xbrl.sec.gov/currency/2022/currency-2022.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ari-20230331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ari-20230331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ari-20230331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ari-20230331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.apolloreit.com/role/CoverPage">
        <link:definition>0000001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsUnaudited" roleURI="http://www.apolloreit.com/role/CondensedConsolidatedBalanceSheetsUnaudited">
        <link:definition>0000002 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsUnauditedParenthetical" roleURI="http://www.apolloreit.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical">
        <link:definition>0000003 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementofOperationsUnaudited" roleURI="http://www.apolloreit.com/role/CondensedConsolidatedStatementofOperationsUnaudited">
        <link:definition>0000004 - Statement - Condensed Consolidated Statement of Operations (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementofOperationsUnauditedParenthetical" roleURI="http://www.apolloreit.com/role/CondensedConsolidatedStatementofOperationsUnauditedParenthetical">
        <link:definition>0000005 - Statement - Condensed Consolidated Statement of Operations (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinStockholdersEquityUnaudited" roleURI="http://www.apolloreit.com/role/ConsolidatedStatementofChangesinStockholdersEquityUnaudited">
        <link:definition>0000006 - Statement - Consolidated Statement of Changes in Stockholders&#8217; Equity (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinStockholdersEquityUnauditedParenthetical" roleURI="http://www.apolloreit.com/role/ConsolidatedStatementofChangesinStockholdersEquityUnauditedParenthetical">
        <link:definition>0000007 - Statement - Consolidated Statement of Changes in Stockholders&#8217; Equity (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementofCashFlowsUnaudited" roleURI="http://www.apolloreit.com/role/CondensedConsolidatedStatementofCashFlowsUnaudited">
        <link:definition>0000008 - Statement - Condensed Consolidated Statement of Cash Flows (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Organization" roleURI="http://www.apolloreit.com/role/Organization">
        <link:definition>0000009 - Disclosure - Organization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPolicies" roleURI="http://www.apolloreit.com/role/SummaryofSignificantAccountingPolicies">
        <link:definition>0000010 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueDisclosure" roleURI="http://www.apolloreit.com/role/FairValueDisclosure">
        <link:definition>0000011 - Disclosure - Fair Value Disclosure</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNet" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNet">
        <link:definition>0000012 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RealEstateOwned" roleURI="http://www.apolloreit.com/role/RealEstateOwned">
        <link:definition>0000013 - Disclosure - Real Estate Owned</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherAssets" roleURI="http://www.apolloreit.com/role/OtherAssets">
        <link:definition>0000014 - Disclosure - Other Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNet" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNet">
        <link:definition>0000015 - Disclosure - Secured Debt Arrangements, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredTermLoanNet" roleURI="http://www.apolloreit.com/role/SeniorSecuredTermLoanNet">
        <link:definition>0000016 - Disclosure - Senior Secured Term Loan, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredNotesNet" roleURI="http://www.apolloreit.com/role/SeniorSecuredNotesNet">
        <link:definition>0000017 - Disclosure - Senior Secured Notes, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesNet" roleURI="http://www.apolloreit.com/role/ConvertibleSeniorNotesNet">
        <link:definition>0000018 - Disclosure - Convertible Senior Notes, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Derivatives" roleURI="http://www.apolloreit.com/role/Derivatives">
        <link:definition>0000019 - Disclosure - Derivatives</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ParticipationsSold" roleURI="http://www.apolloreit.com/role/ParticipationsSold">
        <link:definition>0000020 - Disclosure - Participations Sold</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsPayableAccruedExpensesandOtherLiabilities" roleURI="http://www.apolloreit.com/role/AccountsPayableAccruedExpensesandOtherLiabilities">
        <link:definition>0000021 - Disclosure - Accounts Payable, Accrued Expenses and Other Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://www.apolloreit.com/role/RelatedPartyTransactions">
        <link:definition>0000022 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedPayments" roleURI="http://www.apolloreit.com/role/ShareBasedPayments">
        <link:definition>0000023 - Disclosure - Share-Based Payments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://www.apolloreit.com/role/StockholdersEquity">
        <link:definition>0000024 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.apolloreit.com/role/CommitmentsandContingencies">
        <link:definition>0000025 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstruments" roleURI="http://www.apolloreit.com/role/FairValueofFinancialInstruments">
        <link:definition>0000026 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeperShare" roleURI="http://www.apolloreit.com/role/NetIncomeperShare">
        <link:definition>0000027 - Disclosure - Net Income per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://www.apolloreit.com/role/SubsequentEvents">
        <link:definition>0000028 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesPolicies" roleURI="http://www.apolloreit.com/role/SummaryofSignificantAccountingPoliciesPolicies">
        <link:definition>0000029 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueDisclosureTables" roleURI="http://www.apolloreit.com/role/FairValueDisclosureTables">
        <link:definition>0000030 - Disclosure - Fair Value Disclosure (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetTables" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetTables">
        <link:definition>0000031 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RealEstateOwnedTables" roleURI="http://www.apolloreit.com/role/RealEstateOwnedTables">
        <link:definition>0000032 - Disclosure - Real Estate Owned (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherAssetsTables" roleURI="http://www.apolloreit.com/role/OtherAssetsTables">
        <link:definition>0000033 - Disclosure - Other Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetTables" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetTables">
        <link:definition>0000034 - Disclosure - Secured Debt Arrangements, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredTermLoanNetTables" roleURI="http://www.apolloreit.com/role/SeniorSecuredTermLoanNetTables">
        <link:definition>0000035 - Disclosure - Senior Secured Term Loan, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesNetTables" roleURI="http://www.apolloreit.com/role/ConvertibleSeniorNotesNetTables">
        <link:definition>0000036 - Disclosure - Convertible Senior Notes, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesTables" roleURI="http://www.apolloreit.com/role/DerivativesTables">
        <link:definition>0000037 - Disclosure - Derivatives (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ParticipationsSoldTables" roleURI="http://www.apolloreit.com/role/ParticipationsSoldTables">
        <link:definition>0000038 - Disclosure - Participations Sold (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsPayableAccruedExpensesandOtherLiabilitiesTables" roleURI="http://www.apolloreit.com/role/AccountsPayableAccruedExpensesandOtherLiabilitiesTables">
        <link:definition>0000039 - Disclosure - Accounts Payable, Accrued Expenses and Other Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedPaymentsTables" roleURI="http://www.apolloreit.com/role/ShareBasedPaymentsTables">
        <link:definition>0000040 - Disclosure - Share-Based Payments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityTables" roleURI="http://www.apolloreit.com/role/StockholdersEquityTables">
        <link:definition>0000041 - Disclosure - Stockholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstrumentsTables" roleURI="http://www.apolloreit.com/role/FairValueofFinancialInstrumentsTables">
        <link:definition>0000042 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeperShareTables" roleURI="http://www.apolloreit.com/role/NetIncomeperShareTables">
        <link:definition>0000043 - Disclosure - Net Income per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryofSignificantAccountingPoliciesAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetails">
        <link:definition>0000044 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueDisclosureSummarizesLevelsinFairValueHierarchyofFinancialInstrumentsDetails" roleURI="http://www.apolloreit.com/role/FairValueDisclosureSummarizesLevelsinFairValueHierarchyofFinancialInstrumentsDetails">
        <link:definition>0000045 - Disclosure - Fair Value Disclosure - Summarizes Levels in Fair Value Hierarchy of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueDisclosureNarrativeDetails" roleURI="http://www.apolloreit.com/role/FairValueDisclosureNarrativeDetails">
        <link:definition>0000046 - Disclosure - Fair Value Disclosure - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetLoanPortfolioDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetLoanPortfolioDetails">
        <link:definition>0000047 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Loan Portfolio (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetAdditionalInformationDetails">
        <link:definition>0000048 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetActivityRelatingtoLoanInvestmentPortfolioDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetActivityRelatingtoLoanInvestmentPortfolioDetails">
        <link:definition>0000049 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Activity Relating to Loan Investment Portfolio (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetStatisticsforLoanPortfolioDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetStatisticsforLoanPortfolioDetails">
        <link:definition>0000050 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Statistics for Loan Portfolio (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetScheduleofMortgageLoansbyPropertyTypeandGeographicDistributionDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetScheduleofMortgageLoansbyPropertyTypeandGeographicDistributionDetails">
        <link:definition>0000051 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Mortgage Loans by Property Type and Geographic Distribution (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetAllocationofCarryingValueofLoanPortfolioBasedonInternalRiskRatingsDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetAllocationofCarryingValueofLoanPortfolioBasedonInternalRiskRatingsDetails">
        <link:definition>0000052 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Allocation of Carrying Value of Loan Portfolio Based on Internal Risk Ratings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCECLAllowanceasPercentageofAmortizedCostandTotalCommitmentDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCECLAllowanceasPercentageofAmortizedCostandTotalCommitmentDetails">
        <link:definition>0000053 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - CECL Allowance as Percentage of Amortized Cost and Total Commitment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCurrentExpectedCreditLossesDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCurrentExpectedCreditLossesDetails">
        <link:definition>0000054 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Current Expected Credit Losses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCostRecoveryLoansDetails" roleURI="http://www.apolloreit.com/role/CommercialMortgageLoansSubordinateLoansandOtherLendingAssetsNetCostRecoveryLoansDetails">
        <link:definition>0000055 - Disclosure - Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Cost Recovery Loans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RealEstateOwnedNarrativeDetails" roleURI="http://www.apolloreit.com/role/RealEstateOwnedNarrativeDetails">
        <link:definition>0000056 - Disclosure - Real Estate Owned - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RealEstateOwnedScheduleofRealEstateOwnedFixedAssetsDetails" roleURI="http://www.apolloreit.com/role/RealEstateOwnedScheduleofRealEstateOwnedFixedAssetsDetails">
        <link:definition>0000057 - Disclosure - Real Estate Owned - Schedule of Real Estate Owned Fixed Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherAssetsDetails" roleURI="http://www.apolloreit.com/role/OtherAssetsDetails">
        <link:definition>0000058 - Disclosure - Other Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetAdditionalInformationDetails">
        <link:definition>0000059 - Disclosure - Secured Debt Arrangements, Net - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetWeightedAverageMaturitiesandInterestRatesofBorrowingsDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetWeightedAverageMaturitiesandInterestRatesofBorrowingsDetails">
        <link:definition>0000060 - Disclosure - Secured Debt Arrangements, Net - Weighted Average Maturities and Interest Rates of Borrowings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetCommercialMortgageLoansPledgedtotheBarclaysPrivateSecuritizationDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetCommercialMortgageLoansPledgedtotheBarclaysPrivateSecuritizationDetails">
        <link:definition>0000061 - Disclosure - Secured Debt Arrangements, Net - Commercial Mortgage Loans Pledged to the Barclays Private Securitization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetAssetsUnderBarclaysPrivateSecuritizationDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetAssetsUnderBarclaysPrivateSecuritizationDetails">
        <link:definition>0000062 - Disclosure - Secured Debt Arrangements, Net - Assets Under Barclays Private Securitization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetScheduleofAssetsandLiabilitiesDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetScheduleofAssetsandLiabilitiesDetails">
        <link:definition>0000063 - Disclosure - Secured Debt Arrangements, Net - Schedule of Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetScheduleofNetIncomeDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetScheduleofNetIncomeDetails">
        <link:definition>0000064 - Disclosure - Secured Debt Arrangements, Net - Schedule of Net Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetRemainingMaturitiesofBorrowingsDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetRemainingMaturitiesofBorrowingsDetails">
        <link:definition>0000065 - Disclosure - Secured Debt Arrangements, Net - Remaining Maturities of Borrowings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuredDebtArrangementsNetSummaryofOutstandingBalancesMaximumandAverageBalancesofBorrowingsDetails" roleURI="http://www.apolloreit.com/role/SecuredDebtArrangementsNetSummaryofOutstandingBalancesMaximumandAverageBalancesofBorrowingsDetails">
        <link:definition>0000066 - Disclosure - Secured Debt Arrangements, Net - Summary of Outstanding Balances, Maximum and Average Balances of Borrowings (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredTermLoanNetNarrativeDetails" roleURI="http://www.apolloreit.com/role/SeniorSecuredTermLoanNetNarrativeDetails">
        <link:definition>0000067 - Disclosure - Senior Secured Term Loan, Net - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredTermLoanNetTermLoansDetails" roleURI="http://www.apolloreit.com/role/SeniorSecuredTermLoanNetTermLoansDetails">
        <link:definition>0000068 - Disclosure - Senior Secured Term Loan, Net - Term Loans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeniorSecuredNotesNetDetails" roleURI="http://www.apolloreit.com/role/SeniorSecuredNotesNetDetails">
        <link:definition>0000069 - Disclosure - Senior Secured Notes, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesNetDetails" roleURI="http://www.apolloreit.com/role/ConvertibleSeniorNotesNetDetails">
        <link:definition>0000070 - Disclosure - Convertible Senior Notes, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesNetSummaryofNoteTermsDetails" roleURI="http://www.apolloreit.com/role/ConvertibleSeniorNotesNetSummaryofNoteTermsDetails">
        <link:definition>0000071 - Disclosure - Convertible Senior Notes, Net - Summary of Note Terms (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesSummaryofNonDesignatedForeignExchangeForwardsDetails" roleURI="http://www.apolloreit.com/role/DerivativesSummaryofNonDesignatedForeignExchangeForwardsDetails">
        <link:definition>0000072 - Disclosure - Derivatives - Summary of Non-Designated Foreign Exchange Forwards (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesSummaryofAmountsRecognizedonConsolidatedStatementsofOperationsRelatedtoCompanysDerivativesDetails" roleURI="http://www.apolloreit.com/role/DerivativesSummaryofAmountsRecognizedonConsolidatedStatementsofOperationsRelatedtoCompanysDerivativesDetails">
        <link:definition>0000073 - Disclosure - Derivatives - Summary of Amounts Recognized on Consolidated Statements of Operations Related to Company's Derivatives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/DerivativesAdditionalInformationDetails">
        <link:definition>0000074 - Disclosure - Derivatives - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesSummarizesGrossAssetandLiabilityAmountsRelatedtoDerivativesDetails" roleURI="http://www.apolloreit.com/role/DerivativesSummarizesGrossAssetandLiabilityAmountsRelatedtoDerivativesDetails">
        <link:definition>0000075 - Disclosure - Derivatives - Summarizes Gross Asset and Liability Amounts Related to Derivatives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ParticipationsSoldDetails" roleURI="http://www.apolloreit.com/role/ParticipationsSoldDetails">
        <link:definition>0000076 - Disclosure - Participations Sold (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ParticipationsSoldScheduleofparticipationssoldDetails" roleURI="http://www.apolloreit.com/role/ParticipationsSoldScheduleofparticipationssoldDetails">
        <link:definition>0000077 - Disclosure - Participations Sold - Schedule of participations sold (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountsPayableAccruedExpensesandOtherLiabilitiesDetails" roleURI="http://www.apolloreit.com/role/AccountsPayableAccruedExpensesandOtherLiabilitiesDetails">
        <link:definition>0000078 - Disclosure - Accounts Payable, Accrued Expenses and Other Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsDetails" roleURI="http://www.apolloreit.com/role/RelatedPartyTransactionsDetails">
        <link:definition>0000079 - Disclosure - Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedPaymentsAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/ShareBasedPaymentsAdditionalInformationDetails">
        <link:definition>0000080 - Disclosure - Share-Based Payments - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedPaymentsSummaryofGrantsExchangesandForfeituresofRestrictedStockandRSUsDetails" roleURI="http://www.apolloreit.com/role/ShareBasedPaymentsSummaryofGrantsExchangesandForfeituresofRestrictedStockandRSUsDetails">
        <link:definition>0000081 - Disclosure - Share-Based Payments - Summary of Grants, Exchanges and Forfeitures of Restricted Stock and RSUs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedPaymentsSummaryofRestrictedStockandRSUVestingDatesDetails" roleURI="http://www.apolloreit.com/role/ShareBasedPaymentsSummaryofRestrictedStockandRSUVestingDatesDetails">
        <link:definition>0000082 - Disclosure - Share-Based Payments - Summary of Restricted Stock and RSU Vesting Dates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/StockholdersEquityAdditionalInformationDetails">
        <link:definition>0000083 - Disclosure - Stockholders' Equity - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityDividendsDeclaredDetails" roleURI="http://www.apolloreit.com/role/StockholdersEquityDividendsDeclaredDetails">
        <link:definition>0000084 - Disclosure - Stockholders' Equity - Dividends Declared (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://www.apolloreit.com/role/CommitmentsandContingenciesDetails">
        <link:definition>0000085 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueofFinancialInstrumentsCarryingValueandEstimatedFairValueofCompanysFinancialInstrumentsDetails" roleURI="http://www.apolloreit.com/role/FairValueofFinancialInstrumentsCarryingValueandEstimatedFairValueofCompanysFinancialInstrumentsDetails">
        <link:definition>0000086 - Disclosure - Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value of Company's Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeperShareBasicandDilutedNetIncomeperShareofCommonStockUsingTwoClassMethodDetails" roleURI="http://www.apolloreit.com/role/NetIncomeperShareBasicandDilutedNetIncomeperShareofCommonStockUsingTwoClassMethodDetails">
        <link:definition>0000087 - Disclosure - Net Income per Share - Basic and Diluted Net Income per Share of Common Stock Using Two-Class Method (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeperShareAdditionalInformationDetails" roleURI="http://www.apolloreit.com/role/NetIncomeperShareAdditionalInformationDetails">
        <link:definition>0000088 - Disclosure - Net Income per Share - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsDetails" roleURI="http://www.apolloreit.com/role/SubsequentEventsDetails">
        <link:definition>0000089 - Disclosure - Subsequent Events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="ari_MortgageLoansOnRealEstateCommercialAndConsumerPercentageOfPortfolio" abstract="false" name="MortgageLoansOnRealEstateCommercialAndConsumerPercentageOfPortfolio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_BarclaysFacilityMember" abstract="true" name="BarclaysFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RelatedPartyTransactionTerminationFeeCalculationPeriod" abstract="false" name="RelatedPartyTransactionTerminationFeeCalculationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_TransferOfAssetsToAssetsRelatedToRealEstateOwnedHeldForSale" abstract="false" name="TransferOfAssetsToAssetsRelatedToRealEstateOwnedHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_JuniorMezzanineLoansMember" abstract="true" name="JuniorMezzanineLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableCostRecoveryInterestReceived" abstract="false" name="FinancingReceivableCostRecoveryInterestReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableCostRecovery" abstract="false" name="FinancingReceivableCostRecovery" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AssetAcquisitionLiabilities" abstract="false" name="AssetAcquisitionLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_HotelPropertyTucsonAZMember" abstract="true" name="HotelPropertyTucsonAZMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableLoanSpecificRealizedGainLossOnWriteoff" abstract="false" name="FinancingReceivableLoanSpecificRealizedGainLossOnWriteoff" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_A2028TermLoanMember" abstract="true" name="A2028TermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesOfRealEstateOwned" abstract="false" name="AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesOfRealEstateOwned" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_BankOfAmericaNAMember" abstract="true" name="BankOfAmericaNAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RealEstateOwnedTransferToRealEstateOwnedHeldForSaleDeferredFeesAndOtherItems" abstract="false" name="RealEstateOwnedTransferToRealEstateOwnedHeldForSaleDeferredFeesAndOtherItems" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NewYorkCityMember" abstract="true" name="NewYorkCityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_PaymentstoPurchaseSubordinateCommercialRealEstateLoansHeldforsaleAddonFunding" abstract="false" name="PaymentstoPurchaseSubordinateCommercialRealEstateLoansHeldforsaleAddonFunding" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NumberOfCommercialMortgageLoans" abstract="false" name="NumberOfCommercialMortgageLoans" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_YearOneMember" abstract="true" name="YearOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ProceedsFromPrepaymentPenalties" abstract="false" name="ProceedsFromPrepaymentPenalties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_DebtRelatedToRealEstateOwnedHeldForInvestment" abstract="false" name="DebtRelatedToRealEstateOwnedHeldForInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableFundedAllowanceforCreditLossRollForward" abstract="true" name="FinancingReceivableFundedAllowanceforCreditLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_HotelAtlantaGAMember" abstract="true" name="HotelAtlantaGAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_SeniorAndJuniorMezzanineLoansMember" abstract="true" name="SeniorAndJuniorMezzanineLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableTotalAllowanceforCreditLossRollForward" abstract="true" name="FinancingReceivableTotalAllowanceforCreditLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_MortgageLoansOnRealEstateCommercialAndConsumerFundedNet" abstract="false" name="MortgageLoansOnRealEstateCommercialAndConsumerFundedNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NumberOfIndependentDirectorsRequiredToTerminateManagementAgreement" abstract="false" name="NumberOfIndependentDirectorsRequiredToTerminateManagementAgreement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_TwentyTwentyNineNotesMember" abstract="true" name="TwentyTwentyNineNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_SantanderFacilityMember" abstract="true" name="SantanderFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingCashClassifiedWithinRealEstateOwnedHeldForSaleIncludingExchangeRateEffect" abstract="false" name="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingCashClassifiedWithinRealEstateOwnedHeldForSaleIncludingExchangeRateEffect" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_MixedUseMember" abstract="true" name="MixedUseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableFundedAllowanceforCreditLoss" abstract="false" name="FinancingReceivableFundedAllowanceforCreditLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_CommercialRealEstateLoansHeldForSaleConstructionAndFinancingCostsCapitalized" abstract="false" name="CommercialRealEstateLoansHeldForSaleConstructionAndFinancingCostsCapitalized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossLiability" abstract="false" name="AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_OtherAssetsRealEstateOwned" abstract="false" name="OtherAssetsRealEstateOwned" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SubordinateMortgagePortfolioSegmentMember" abstract="true" name="SubordinateMortgagePortfolioSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_InterestExpenseDebtNoncash" abstract="false" name="InterestExpenseDebtNoncash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_ReimbursementsMember" abstract="true" name="ReimbursementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_BarclaysSecuritizationMember" abstract="true" name="BarclaysSecuritizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LossContingencyDamagesSoughtLossOnInvestmentValue" abstract="false" name="LossContingencyDamagesSoughtLossOnInvestmentValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_YearTwoMember" abstract="true" name="YearTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_JPMorganChaseDBRepurchaseFacilityGoldmanSachsCreditSuisseBarclaysFacilityHSBCFacilitiesAndBarclaysSecuritizationMember" abstract="true" name="JPMorganChaseDBRepurchaseFacilityGoldmanSachsCreditSuisseBarclaysFacilityHSBCFacilitiesAndBarclaysSecuritizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_JuniorMezzanineBLoanMember" abstract="true" name="JuniorMezzanineBLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableGeneralAllowanceCreditLossExpenseReversal" abstract="false" name="FinancingReceivableGeneralAllowanceCreditLossExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_UrbanPredevelopmentMember" abstract="true" name="UrbanPredevelopmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ArrangementFeesMember" abstract="true" name="ArrangementFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ScheduleofOutstandingMaximumandAverageBalancesofDebtTableTextBlock" abstract="false" name="ScheduleofOutstandingMaximumandAverageBalancesofDebtTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableWeightedAverageRemainingTerm" abstract="false" name="LoansandLeasesReceivableWeightedAverageRemainingTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantLiquidityRatioRequiredMinimum" abstract="false" name="DebtInstrumentCovenantLiquidityRatioRequiredMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_ProceedsfromCollectionofCommercialRealEstateLoansHeldforsale" abstract="false" name="ProceedsfromCollectionofCommercialRealEstateLoansHeldforsale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableWeightedAverageExpectedMaturity" abstract="false" name="LoansAndLeasesReceivableWeightedAverageExpectedMaturity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_LineOfCreditFacilityOptionToExtendPeriod" abstract="false" name="LineOfCreditFacilityOptionToExtendPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_RealEstateOwnedTransferToRealEstateOwnedHeldForSaleNet" abstract="false" name="RealEstateOwnedTransferToRealEstateOwnedHeldForSaleNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableNetDeferredIncomePIKInterestLoanCommitmentandOriginationFeesandDiscountsorPremiumsAmortization" abstract="false" name="LoansandLeasesReceivableNetDeferredIncomePIKInterestLoanCommitmentandOriginationFeesandDiscountsorPremiumsAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SecuritiesSoldUnderAgreementsToRepurchaseAmortizedCostOfCollateral" abstract="false" name="SecuritiesSoldUnderAgreementsToRepurchaseAmortizedCostOfCollateral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NumberOfLoans" abstract="false" name="NumberOfLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_InterestandFeeIncomeLoansSubordinateCommercialRealEstate" abstract="false" name="InterestandFeeIncomeLoansSubordinateCommercialRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_IncreaseDecreaseFromPaidInKind" abstract="false" name="IncreaseDecreaseFromPaidInKind" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoanCollateralMeasurementInput" abstract="false" name="LoanCollateralMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_GBPLondonInterbankOfferedRateLIBORMember" abstract="true" name="GBPLondonInterbankOfferedRateLIBORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_EURLondonInterbankOfferedRateLIBORMember" abstract="true" name="EURLondonInterbankOfferedRateLIBORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoanProceedsHeldByServicerNoncash" abstract="false" name="LoanProceedsHeldByServicerNoncash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_IncreaseDecreaseinAccountsPayableAccruedLiabilitiesandOtherLiabilities" abstract="false" name="IncreaseDecreaseinAccountsPayableAccruedLiabilitiesandOtherLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SouthwestMember" abstract="true" name="SouthwestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoanandLeasesReceivableGrossRollForward" abstract="true" name="LoanandLeasesReceivableGrossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableGrossForeignCurrencyGainLoss" abstract="false" name="LoansandLeasesReceivableGrossForeignCurrencyGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_DebtInstrumentDiscountRateAtIssuanceOfFaceValue" abstract="false" name="DebtInstrumentDiscountRateAtIssuanceOfFaceValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_DebtInstrumentNumberOfExtensionsAvailable" abstract="false" name="DebtInstrumentNumberOfExtensionsAvailable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_AdditionsToParticipationSold" abstract="false" name="AdditionsToParticipationSold" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RetailCenterCincinnatiOHMember" abstract="true" name="RetailCenterCincinnatiOHMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_CommonStockAllClassesMember" abstract="true" name="CommonStockAllClassesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RealEstateOwnedHeldForSaleNetOfImpairment" abstract="false" name="RealEstateOwnedHeldForSaleNetOfImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_GuarantorObligationsMaximumExposureTerm" abstract="false" name="GuarantorObligationsMaximumExposureTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_DebtInstrumentFacilityFeaturePeriod" abstract="false" name="DebtInstrumentFacilityFeaturePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_ProceedsFromSecuritiesSoldUnderAgreementsToRepurchase" abstract="false" name="ProceedsFromSecuritiesSoldUnderAgreementsToRepurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_CaravanParkMember" abstract="true" name="CaravanParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_JPMorganChaseDBRepurchaseFacilityGoldmanSachsCreditSuisseBarclaysFacilityAndHSBCFacilitiesMember" abstract="true" name="JPMorganChaseDBRepurchaseFacilityGoldmanSachsCreditSuisseBarclaysFacilityAndHSBCFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RelatedPartyTransactionAnnualManagementFeeRate" abstract="false" name="RelatedPartyTransactionAnnualManagementFeeRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_ManagementFeesMember" abstract="true" name="ManagementFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ResidentialMember" abstract="true" name="ResidentialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_GainLossInCollateralHeldInvestingActivities" abstract="false" name="GainLossInCollateralHeldInvestingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableUnfundedAllowanceforCreditLossRollForward" abstract="true" name="FinancingReceivableUnfundedAllowanceforCreditLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_FinancingReceivableGeneralAllowanceAllowanceforCreditLossRollForward" abstract="true" name="FinancingReceivableGeneralAllowanceAllowanceforCreditLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_LineOfCreditFacilityRealPropertyOwnedAssetBorrowingsTerm" abstract="false" name="LineOfCreditFacilityRealPropertyOwnedAssetBorrowingsTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_OfficeMember" abstract="true" name="OfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_MeasurementInputTerminalCapitalizationRateMember" abstract="true" name="MeasurementInputTerminalCapitalizationRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LiabilitiesRelatedToRealEstateOwnedHeldForInvestment" abstract="false" name="LiabilitiesRelatedToRealEstateOwnedHeldForInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AtlasFacilityMember" abstract="true" name="AtlasFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossExpenseReversal" abstract="false" name="AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_MezzanineLoansMember" abstract="true" name="MezzanineLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableGainLossOnSalesGross" abstract="false" name="LoansAndLeasesReceivableGainLossOnSalesGross" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_PercentageOfPortfolio" abstract="false" name="PercentageOfPortfolio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_PaymentsForSecuritiesSoldUnderAgreementsToRepurchase" abstract="false" name="PaymentsForSecuritiesSoldUnderAgreementsToRepurchase" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_Buildings" abstract="false" name="Buildings" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_MUFGFacilityMember" abstract="true" name="MUFGFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentAmortizationPeriod" abstract="false" name="DebtInstrumentAmortizationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ari_CommercialMortgagePortfolioSegmentMember" abstract="true" name="CommercialMortgagePortfolioSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableConstructionAndFinanceCostsCapitalized" abstract="false" name="FinancingReceivableConstructionAndFinanceCostsCapitalized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableDeferredIncomeAmortization" abstract="false" name="LoansandLeasesReceivableDeferredIncomeAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RealEstateAndMezzanineMember" abstract="true" name="RealEstateAndMezzanineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableBasisSpreadOnVariableRate" abstract="false" name="FinancingReceivableBasisSpreadOnVariableRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_MidwestMember" abstract="true" name="MidwestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_NumberOfCreditFacilities" abstract="false" name="NumberOfCreditFacilities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_PaymentstoPurchaseLoansHeldforsaleAddonFunding" abstract="false" name="PaymentstoPurchaseLoansHeldforsaleAddonFunding" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableNetRealizedLossOnInvestment" abstract="false" name="LoansAndLeasesReceivableNetRealizedLossOnInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AssetAcquisitionCashAndEquivalents" abstract="false" name="AssetAcquisitionCashAndEquivalents" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableAllowanceForCreditLossIncludingLoanSpecificRealEstate" abstract="false" name="FinancingReceivableAllowanceForCreditLossIncludingLoanSpecificRealEstate" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TransferOfLiabilitiesRelatedToRealEstateOwnedHeldForSaleToLiabilities" abstract="false" name="TransferOfLiabilitiesRelatedToRealEstateOwnedHeldForSaleToLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_MixedUsePropertyLondonMember" abstract="true" name="MixedUsePropertyLondonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentRemainingUnfundedCommitment" abstract="false" name="DebtInstrumentRemainingUnfundedCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RepaymentsOfSecuredDebtAmortizingPercent" abstract="false" name="RepaymentsOfSecuredDebtAmortizingPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossExpenseReversal" abstract="false" name="AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NortheastMember" abstract="true" name="NortheastMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentWeightedAverageHaircutUnderRepurchaseAgreements" abstract="false" name="DebtInstrumentWeightedAverageHaircutUnderRepurchaseAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_TwoThousandTwentyTwoNotesMember" abstract="true" name="TwoThousandTwentyTwoNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_WestMember" abstract="true" name="WestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AssetAcquisitionFurnitureFixturesAndEquipment" abstract="false" name="AssetAcquisitionFurnitureFixturesAndEquipment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NetIncomeLossAttributabletoParentBasic" abstract="false" name="NetIncomeLossAttributabletoParentBasic" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_A2009EquityIncentivePlanLTIPMember" abstract="true" name="A2009EquityIncentivePlanLTIPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ScheduleofMortgageLoansonRealEstateTableTextBlock" abstract="false" name="ScheduleofMortgageLoansonRealEstateTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_TerminationFeePercentFeeOfBaseManagementFee" abstract="false" name="TerminationFeePercentFeeOfBaseManagementFee" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableDeferredIncomeUnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsPeriodIncrease" abstract="false" name="LoansandLeasesReceivableDeferredIncomeUnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsPeriodIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LineofCreditFacilityInterestRateStatedPercentage" abstract="false" name="LineofCreditFacilityInterestRateStatedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_JuniorMezzanineALoanMember" abstract="true" name="JuniorMezzanineALoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantLiquidityRequiredMinimumAmount" abstract="false" name="DebtInstrumentCovenantLiquidityRequiredMinimumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantInterestCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantInterestCoverageRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_VariousPropertiesInEuropeMember" abstract="true" name="VariousPropertiesInEuropeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_IncreaseDecreaseInRealEstateHeldForInvestment" abstract="false" name="IncreaseDecreaseInRealEstateHeldForInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SecuredOvernightFinancingRateMember" abstract="true" name="SecuredOvernightFinancingRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableFundedCreditLossExpenseReversal" abstract="false" name="FinancingReceivableFundedCreditLossExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_JPMorganChaseMember" abstract="true" name="JPMorganChaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_CreditSuisseFacilityMember" abstract="true" name="CreditSuisseFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantUnencumberedLiquidityThreshold" abstract="false" name="DebtInstrumentCovenantUnencumberedLiquidityThreshold" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_OffBalanceSheetCreditLossLiabilityTransfers" abstract="false" name="OffBalanceSheetCreditLossLiabilityTransfers" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableCostRecoveryNet" abstract="false" name="FinancingReceivableCostRecoveryNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RelatedPartyTransactionExtensionPeriod" abstract="false" name="RelatedPartyTransactionExtensionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_AssetAcquisitionLand" abstract="false" name="AssetAcquisitionLand" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AmendedandRestatedJPMorganFacilityMember" abstract="true" name="AmendedandRestatedJPMorganFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_EquityContributionRate" abstract="false" name="EquityContributionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_ScheduleofLoansReceivableStatisticsTableTextBlock" abstract="false" name="ScheduleofLoansReceivableStatisticsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_OtherGeographicLocationsMember" abstract="true" name="OtherGeographicLocationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ApolloInvestmentManagementEuropeMember" abstract="true" name="ApolloInvestmentManagementEuropeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RealEstateOwnedOperatingCostsAndExpenses" abstract="false" name="RealEstateOwnedOperatingCostsAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_OtherEuropeMember" abstract="true" name="OtherEuropeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_RelatedpartyTransactionTerminationNoticePeriod" abstract="false" name="RelatedpartyTransactionTerminationNoticePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet" abstract="false" name="AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedAndIssuedinPeriod" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedAndIssuedinPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ari_PaymentsForMortgageLoans" abstract="false" name="PaymentsForMortgageLoans" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AccountsPayableAccruedLiabilitiesAndOtherLiabilities" abstract="false" name="AccountsPayableAccruedLiabilitiesAndOtherLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableCostRecoveryTableTextBlock" abstract="false" name="FinancingReceivableCostRecoveryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantNetWorthThreshold" abstract="false" name="DebtInstrumentCovenantNetWorthThreshold" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_ParkingGarageMember" abstract="true" name="ParkingGarageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableWeightedAverageRiskRating" abstract="false" name="LoansAndLeasesReceivableWeightedAverageRiskRating" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_GoldmanSachsRepurchaseFacilityMember" abstract="true" name="GoldmanSachsRepurchaseFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_IncreaseInCashClassifiedWithinRealEstateOwnedHeldForSale" abstract="false" name="IncreaseInCashClassifiedWithinRealEstateOwnedHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableNonaccrualOrCostRecoveryLoansWeightedAverageInterestRate" abstract="false" name="FinancingReceivableNonaccrualOrCostRecoveryLoansWeightedAverageInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_JVPartnerMember" abstract="true" name="JVPartnerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_TurnerConsultingMember" abstract="true" name="TurnerConsultingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_PaymentstoPurchaseCommercialRealEstateLoansHeldforsale" abstract="false" name="PaymentstoPurchaseCommercialRealEstateLoansHeldforsale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_DebtInstrumentWaivingOfDebtServicePaymentsTerm" abstract="false" name="DebtInstrumentWaivingOfDebtServicePaymentsTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableDeferredIncomeGainLossOnSale" abstract="false" name="LoansAndLeasesReceivableDeferredIncomeGainLossOnSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FloatingRateLoanMember" abstract="true" name="FloatingRateLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentNumberOfOfferings" abstract="false" name="DebtInstrumentNumberOfOfferings" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableNumberOfContracts" abstract="false" name="LoansAndLeasesReceivableNumberOfContracts" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableDeferredIncomeUnrealizedGainOnForeignCurrencyTranslation" abstract="false" name="LoansandLeasesReceivableDeferredIncomeUnrealizedGainOnForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RealEstateHeldForSaleGainLossOnReclassification" abstract="false" name="RealEstateHeldForSaleGainLossOnReclassification" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_OffBalanceSheetCreditLossLiabilityAmountExcluded" abstract="false" name="OffBalanceSheetCreditLossLiabilityAmountExcluded" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoanandLeasesReceivableNetRollForward" abstract="true" name="LoanandLeasesReceivableNetRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_InterestRateCapandSwapMember" abstract="true" name="InterestRateCapandSwapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_PaymentstoPurchaseCommercialRealEstateLoansHeldforsaleAddonFunding" abstract="false" name="PaymentstoPurchaseCommercialRealEstateLoansHeldforsaleAddonFunding" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_ResidentialManhattanNYMember" abstract="true" name="ResidentialManhattanNYMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCurrencyConversionRate" abstract="false" name="DebtInstrumentCurrencyConversionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_TwoThousandTwentyThreeNotesMember" abstract="true" name="TwoThousandTwentyThreeNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantNetCashProceedsOfAdditionalEquityIssuancesAmount" abstract="false" name="DebtInstrumentCovenantNetCashProceedsOfAdditionalEquityIssuancesAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TransferOfAssetsRelatedToRealEstateOwnedHeldForSaleToAssetsRelatedToRealEstateOwnedNet" abstract="false" name="TransferOfAssetsRelatedToRealEstateOwnedHeldForSaleToAssetsRelatedToRealEstateOwnedNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableNetForeignCurrencyGainLoss" abstract="false" name="LoansandLeasesReceivableNetForeignCurrencyGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_SoutheastMember" abstract="true" name="SoutheastMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentPariuPassuRatio" abstract="false" name="DebtInstrumentPariuPassuRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_AssetAcquisitionAssets" abstract="false" name="AssetAcquisitionAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_HotelThroughADiedInLieuForeclosureMember" abstract="true" name="HotelThroughADiedInLieuForeclosureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentAmortizedCostBasis" abstract="false" name="DebtInstrumentAmortizedCostBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableGrossPaidinKindInterestLoanCommitmentandOriginationFeesandDiscountsorPremiumsAmortization" abstract="false" name="LoansandLeasesReceivableGrossPaidinKindInterestLoanCommitmentandOriginationFeesandDiscountsorPremiumsAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_FinancingReceivableLoanSpecificCreditLossExpenseReversal" abstract="false" name="FinancingReceivableLoanSpecificCreditLossExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_A2026TermLoanMember" abstract="true" name="A2026TermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_MidAtlanticMember" abstract="true" name="MidAtlanticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LineOfCreditFacilityQualifyingCommercialLoanBorrowingsTerm" abstract="false" name="LineOfCreditFacilityQualifyingCommercialLoanBorrowingsTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ari_ProceedsFromSaleOfLoansHeldForSaleReclassifiedIntoOtherAssets" abstract="false" name="ProceedsFromSaleOfLoansHeldForSaleReclassifiedIntoOtherAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_OfficeLondonUKMember" abstract="true" name="OfficeLondonUKMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoanandLeasesReceivableDeferredincomeRollForward" abstract="true" name="LoanandLeasesReceivableDeferredincomeRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_RealEstateInvestmentMeasurementInput" abstract="false" name="RealEstateInvestmentMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantTangibleNetWorthPercentage" abstract="false" name="DebtInstrumentCovenantTangibleNetWorthPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_A2022NewCreditFacilitiesMember" abstract="true" name="A2022NewCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DividendsPayableIncludingPreferredStockDividends" abstract="false" name="DividendsPayableIncludingPreferredStockDividends" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_NumberOfMortgageLoans" abstract="false" name="NumberOfMortgageLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ari_DebtInstrumentAdvanceRate" abstract="false" name="DebtInstrumentAdvanceRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_CommercialMortgageandSubordinatedPortfolioSegmentMember" abstract="true" name="CommercialMortgageandSubordinatedPortfolioSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_SeniorMezzanineLoansMember" abstract="true" name="SeniorMezzanineLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantInterestCoverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantInterestCoverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_FinancingReceivableAllowanceforCreditLossAndOffBalanceSheetLiabilityCreditLossTableTextBlock" abstract="false" name="FinancingReceivableAllowanceforCreditLossAndOffBalanceSheetLiabilityCreditLossTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_OfficeBuildingLondonMember" abstract="true" name="OfficeBuildingLondonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_FinancingReceivableAllowanceForCreditLossLoanSpecificRealEstate" abstract="false" name="FinancingReceivableAllowanceForCreditLossLoanSpecificRealEstate" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TransferOfAssetsRelatedToRealEstateOwnedHeldForSaleToAssets" abstract="false" name="TransferOfAssetsRelatedToRealEstateOwnedHeldForSaleToAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_A2023RevolvingCreditFacilityMember" abstract="true" name="A2023RevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_HSBCFacilityMember" abstract="true" name="HSBCFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DeutscheBankRepurchaseFacilityMember" abstract="true" name="DeutscheBankRepurchaseFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossLiabilityPercentOfAmortizedCost" abstract="false" name="AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossLiabilityPercentOfAmortizedCost" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_SEKLondonInterbankOfferedRateLIBORMember" abstract="true" name="SEKLondonInterbankOfferedRateLIBORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AllowanceandProvisionforLoanCreditLossRollForward" abstract="true" name="AllowanceandProvisionforLoanCreditLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ari_DebtRelatedToRealEstateOwnedHeldForInvestmentNetFairValueDisclousre" abstract="false" name="DebtRelatedToRealEstateOwnedHeldForInvestmentNetFairValueDisclousre" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TotalTermLoansMember" abstract="true" name="TotalTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_LoansAndLeasesReceivableWeightedAverageInterestRate" abstract="false" name="LoansAndLeasesReceivableWeightedAverageInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_HotelWashingtonD.C.Member" abstract="true" name="HotelWashingtonD.C.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccountsPayableAccruedLiabilitiesAndOtherLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccountsPayableAccruedLiabilitiesAndOtherLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TwoExistingCreditFacilitiesMember" abstract="true" name="TwoExistingCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ScheduleofMortgageLoansonRealEstateActivityTableTextBlock" abstract="false" name="ScheduleofMortgageLoansonRealEstateActivityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_SeriesB1PreferredStockMember" abstract="true" name="SeriesB1PreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentRecourseDebtPercent" abstract="false" name="DebtInstrumentRecourseDebtPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantRecourseDebtToTangibleNetWorthRatioMaximum" abstract="false" name="DebtInstrumentCovenantRecourseDebtToTangibleNetWorthRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_JointVentureMember" abstract="true" name="JointVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantIndebtednessToTangibleWorthRatioMaximumAmount" abstract="false" name="DebtInstrumentCovenantIndebtednessToTangibleWorthRatioMaximumAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_LoansandLeasesReceivableDeferredIncomePeriodIncrease" abstract="false" name="LoansandLeasesReceivableDeferredIncomePeriodIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_TwoThousandNineteenand2022NotesMember" abstract="true" name="TwoThousandNineteenand2022NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_MortgageLoansonRealEstateCommitmenttoLendUnfundedAmount" abstract="false" name="MortgageLoansonRealEstateCommitmenttoLendUnfundedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_HotelPropertyThroughADeedInLieuOfForeclosureMember" abstract="true" name="HotelPropertyThroughADeedInLieuOfForeclosureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_ConvertibleDebtTextBlock" abstract="false" name="ConvertibleDebtTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ari_YearThreeMember" abstract="true" name="YearThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_DeedInLieuOfForeclosureMember" abstract="true" name="DeedInLieuOfForeclosureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossLiabilityPercentOfAmortizedCost" abstract="false" name="AllowanceForLoanAndLeaseLossesIncludingLoanSpecificRealEstateAndOffBalanceSheetCreditLossLiabilityPercentOfAmortizedCost" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ari_DebtInstrumentCovenantUnencumberedAssetsToPariPassuIndebtednessRatioMaximum" abstract="false" name="DebtInstrumentCovenantUnencumberedAssetsToPariPassuIndebtednessRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="ari_AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossLiability" abstract="false" name="AllowanceForLoanAndLeaseLossesRealEstateAndOffBalanceSheetCreditLossLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_AssetAcquisitionOtherAssets" abstract="false" name="AssetAcquisitionOtherAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RealEstateOwnedTransferToRealEstateOwnedHeldForSaleGross" abstract="false" name="RealEstateOwnedTransferToRealEstateOwnedHeldForSaleGross" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_RealEstateOwnedTransferToHeldForSaleHeldForSaleNet" abstract="false" name="RealEstateOwnedTransferToHeldForSaleHeldForSaleNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ari_MultifamilyDevelopmentBrooklynNYMember" abstract="true" name="MultifamilyDevelopmentBrooklynNYMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
