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          <AddressLine1Txt>11 NEW WHITNEY STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
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        <ExplanationTxt>THE CORPORATION WAS FORMED ON AUGUST 20, 2013 UNDER CHAPTER 180 OF THE GENERAL LAWS OF THE COMMONWEALTH OF MASSACHUSETTS AND ORGANIZED EXCLUSIVELY TO BENEFIT, PERFORM THE FUNCTIONS OF, AND CARRY OUT THE PURPOSES OF ROXBURY TENANTS OF HARVARD ASSOCIATION, INC.(RTH), A MASSACHUSETTS CHARITABLE CORPORATION. ON DECEMBER 30, 2015, THE CORPORATION ACQUIRED FROM RTH THE ENTIRE MEMBERSHIP INTEREST IN MISSION PARK LLC, A DELAWARE LIMITED LIABILITY COMPANY, WHICH WAS THE FEE OWNER OF CERTAIN REAL PROPERTY LOCATED IN MISSION HILL, BOSTON, MA (MISSION PARK). MISSION PARK CONSISTS OF AN AFFORDABLE HOUSING PROJECT, INCLUDING RESIDENTIAL AND RELATED RECREATIONAL BUILDINGS AND A SUBSURFACE GARAGE LOCATED UNDERNEATH THE MISSION PARK RESIDENTIAL HOUSING AND OFFICE COMPLEX LOCATED AT 780-850 HUNTINGTON AVENUE, BOSTON, MA (THE GARAGE). ON DECEMBER 30, 2015, THE CORPORATION ALSO ASSUMED ALL OF THE ASSETS AND LIABILITIES OF MISSION PARK GARAGE LIMITED PARTNERSHIP (THE PARTNERSHIP), AN URBAN REDEVELOPMENT PARTNERSHIP THAT WAS CREATED TO LEASE, MAINTAIN, AND OPERATE, THE GARAGE. THE CORPORATION IS THE FEE OWNER OF THE GARAGE AND WILL SERVE AS LANDLORD UNDER THE LEASES WITH BRIGHAM AND WOMEN'S HOSPITAL (BWH) AND MISSION PARK LIMITED PARTNERSHIP (MPLP) (OWNER OF MISSION PARK AND AN AFFILIATE OF RTH), RESPECTIVELY. THE CORPORATION ASSUMED A REGULATORY AGREEMENT, DATED DECEMBER 31, 1999, BETWEEN THE CORPORATION AND THE BOSTON REDEVELOPMENT AUTHORITY (BRA) THAT RESTRICTS THE GARAGE ACTIVITIES AND ITS CASH FLOWS FOR THE BENEFIT OF MISSION PARK HOUSING DEVELOPMENT. PURSUANT TO A GARAGE CASH FLOW RESTRICTIONS AGREEMENT (CASH FLOW AGREEMENT), BETWEEN THE CORPORATION AND MPLP, NET OPERATING CASH FLOW IS TO BE DISTRIBUTED AS FOLLOWS: "FIRST; TO PAY FOR THE COSTS OF PROVIDING SECURITY SERVICES TO THE ENTIRE MISSION PARK PROJECT, "SECOND; TO "BUY DOWN" THE CHAPTER 121A EXCISE TAX PAYABLE BY MPLP SO AS TO REDUCE MPLP'S CHAPTER 121A EXCISE TAX TO NO MORE THAN 6% OF ITS GROSS RESIDENTIAL INCOME, "THIRD; TO PAY MPLP THE AMOUNT BY WHICH CAPITAL EXPENDITURES EXCEED OPERATING REVENUES, "FOURTH; TO PAY FOR SOCIAL SERVICES (NOT TO EXCEED 350,000 INDEXED FOR INFLATION ANNUALLY) TO THE RESIDENTS OF MISSION PARK AND NEARBY RTH PROPERTIES AND, "FIFTH, TO DEPOSIT ANY REMAINING AMOUNTS TO A HOUSING DEDICATED RESERVE ACCOUNT THE NET OPERATING CASH FLOW IS FIRST TO BE DISTRIBUTED TO RTH, WHICH THEN MAKES NON-INTEREST OPERATING DEFICIT LOANS TO MPLP IN SUFFICIENT AMOUNTS TO COVER THE FIRST FOUR DISTRIBUTION PRIORITIES DESCRIBED ABOVE.</ExplanationTxt>
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        <TotalCompensationRltdOrgsAmt>207571</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PATRICIA HARAN</PersonNm>
        <TitleTxt>CONTROLLER</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>151923</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>2620</BonusRelatedOrganizationsAmt>
        <DeferredCompRltdOrgsAmt>9838</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>15989</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>180370</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JENNI SHAW</PersonNm>
        <TitleTxt>HR DIRECTOR</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>135380</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>2620</BonusRelatedOrganizationsAmt>
        <DeferredCompRltdOrgsAmt>8970</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>13801</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>160771</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc5">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>RTH MISSION PARK REALTY CORPORATION (THE "CORPORATION") WAS ORGANIZED EXCLUSIVELY TO BENEFIT, PERFORM THENFUNCTIONS OF, AND CARRY OUT THE PURPOSES OF ROXBURY TENANTS OF HARVARD ASSOCIATION, INC., A MASSACHUSETTS CHARITABLE CORPORATION ("RTH").</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART V</FormAndLineReferenceDesc>
        <ExplanationTxt>LINE 2A (EMPLOYEES) THE CORPORATION DOES NOT DIRECTLY EMPLOY PERSONNEL TO MANAGE THE DAY-TO-DAY OPERATIONS. UNDER A MANAGEMENT AGREEMENT TRINITY MANAGEMENT, LLC PROVIDES PROPERTY MANAGEMENT, MAINTENANCE OVERSIGHT, LEASING, AND ADMINISTRATIVE SERVICES. PERSONNEL PERFORMING THESE SERVICES ARE EMPLOYEES OF TRINITY MANAGEMENT, LLC AND ARE NOT REPORTED AS EMPLOYEES OF THE CORPORATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>. UNDER A MANAGEMENT AGREEMENT TRINITY MANAGEMENT, LLC PROVIDES PROPERTY MANAGEMENT, MAINTENANCE OVERSIGHT, LEASING, AND ADMINISTRATIVE SERVICES FOR MISSION PARK LIMITED PARTNERSHIP, A DISREGARDED ENTITY. PERSONNEL PERFORMING THESE SERVICES ARE EMPLOYEES OF TRINITY MANAGEMENT, LLC AND ARE NOT REPORTED AS EMPLOYEES OF THE CORPORATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOLE MEMBER OF THE CORPORATION IS ROXBURY TENANTS OF HARVARD ASSOCIATION, INC., A MASSACHUSETTS NON-PROFIT CORPORATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOLE MEMBER OF THE CORPORATION IS ROXBURY TENANTS OF HARVARD ASSOCIATION, INC., A MASSACHUSETTS NON-PROFIT CORPORATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION IS SUPERVISED OR CONTROLLED IN CONNECTION WITH RTH WITHIN THE MEANING OF SECTION 509(A)(3)(B)(II) OFTHE CODE. THE CORPORATION'S BY- LAWS PROVIDE IN SECTION 4.2 THAT THE BOARD OF DIRECTORS OF THE CORPORATION SHALL CONSIST OF UP TO SIX ( 6) PERSONS WHO SHALL BE THE PERSONS THEN SERVING AS THE PRESIDENT, VICE PRESIDENT (IF ANY), TREASURER, ASSISTANT TREASURER (IF ANY), CLERK AND ASSISTANT CLERK (IF ANY) OFRTH, EX OFFICIO, I.E., BY VIRTUE OF THEIR POSITIONS AS OFFICERS OFRTH AND IN SECTION 6.1 THAT THE OFFICERS OF THE CORPORATION, A PRESIDENT, TREASURER, CLERK, VICE- PRESIDENT (IF ANY), ASSISTANT TREASURER (IF ANY), AND ASSISTANT CLERK (IF ANY), SHALL BE THE PERSONS THEN SERVING AS THE PRESIDENT, VICE PRESIDENT (IF ANY), TREASURER, ASSISTANT TREASURER(IF ANY), CLERK AND ASSISTANT CLERK (IF ANY) OFRTH, EX OFFICIO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS REVIEWED AND APPROVED BY CFO AND PRESENTED TO BOARD OF DIRECTORS FOR APPROVAL PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, POLICIES, AND FINANCIAL STATEMENTS ARE MADE AVAILABLE UPON REQUEST. NO REQUESTS FOR INFORMATION WERE MADE DURING THE YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc6">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>RTH MISSION PARK REALTY LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>11 NEW WHITNEY STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02199</ZIPCd>
        </USAddress>
        <EIN>320513607</EIN>
        <PrimaryActivitiesTxt>REAL ESTAT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>RTH MPRC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>RTH HOLDINGS LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>11 NEW WHITNEY STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02199</ZIPCd>
        </USAddress>
        <EIN>871326159</EIN>
        <PrimaryActivitiesTxt>REAL ESTAT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <TotalIncomeAmt>285810</TotalIncomeAmt>
        <EndOfYearAssetsAmt>4930476</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>RTH MPRC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MISSION PARK LIMITED PARTNERSHIP</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>C/O TRINITY MGMT 75 FEDERAL ST</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02210</ZIPCd>
        </USAddress>
        <EIN>043470809</EIN>
        <PrimaryActivitiesTxt>HOUSING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <TotalIncomeAmt>42389976</TotalIncomeAmt>
        <EndOfYearAssetsAmt>149351785</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>RTHMPRC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ROXBURY TENANTS OF HARVARD ASSOC</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>11 NEW WHITNEY STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02115</ZIPCd>
        </USAddress>
        <EIN>042555987</EIN>
        <PrimaryActivitiesTxt>COMM. DEVL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501C3</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>true</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ROXBURY TENANTS OF HARVARD</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>B</TransactionTypeTxt>
        <InvolvedAmt>12352769</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ROXBURY TENANTS OF HARVARD</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>O</TransactionTypeTxt>
        <InvolvedAmt>68071</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>ROXBURY TENANTS OF HARVARD</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>1391868</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>