EX-31 Rule 13a-14(d)/15d-14(d) Certifications.

 

 

I, Kunal K. Singh, certify that:

 

1. I have reviewed this report on Form 10-K and all reports onForm 10-D required to be filed in respect of the period covered by this reporton Form 10-K of the Benchmark 2021-B28 Mortgage Trust (the "Exchange Actperiodic reports");

 

2. Based on my knowledge, the Exchange Act periodic reports, takenas a whole, do not contain any untrue statement of a material fact or omit tostate a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading withrespect to the period covered by this report;

 

3. Based on my knowledge, all of the distribution, servicing andother information required to be provided under Form 10-D for the periodcovered by this report is included in the Exchange Act periodic reports;

 

4. Based on my knowledge and the servicer compliance statementsrequired in this report under Item 1123 of Regulation AB, and except asdisclosed in the Exchange Act periodic reports, the servicers have fulfilledtheir obligations under the servicing agreements in all material respects; and

 

5. All of the reports on assessment of compliance with servicingcriteria for asset-backed securities and their related attestation reports onassessment of compliance with servicing criteria for asset-backed securitiesrequired to be included in this report in accordance with Item 1122 ofRegulation AB and Exchange Act Rules 13a-18 and 15d-18 have been included as anexhibit to

this report, except as otherwise disclosed in this report. Anymaterial instances of noncompliance described in such reports have beendisclosed in this report on Form 10-K.

 

In giving the certifications above, I have reasonably relied oninformation provided to me by the following unaffiliated parties:

 

Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Master Servicer, Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer, Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator, Wells Fargo Bank,National Association, as Custodian, Pentalpha Surveillance LLC, as OperatingAdvisor, Computershare Trust Company, National Association, as ServicingFunction Participant for the Certificate Administrator on and afterNovember 1, 2021, Computershare Trust Company, National Association, asServicing Function Participant for the Custodian on and after November 1,2021, Midland Loan Services, a Division of PNC Bank, National Association, asPrimary Servicer for the Colonnade Corporate Center Mortgage Loan, Midland LoanServices, a Division of PNC Bank, National Association, as Special Servicer forthe Colonnade Corporate Center Mortgage Loan, Wilmington Trust, NationalAssociation, as Trustee for the Colonnade Corporate Center Mortgage Loan,Citibank, N.A., as Custodian for the Colonnade Corporate Center Mortgage Loan,Park Bridge Lender Services LLC, as Operating Advisor for the Colonnade CorporateCenter Mortgage Loan, U.S. Bank National Association, as Servicing FunctionParticipant for the Colonnade Corporate Center Mortgage Loan, Midland LoanServices, a Division of PNC Bank, National Association, as Primary Servicer forthe 4500 Academy Road Distribution Center Mortgage Loan, Midland Loan Services,a Division of PNC Bank, National Association, as Special Servicer for the 4500Academy Road Distribution Center Mortgage Loan, Wilmington Trust, NationalAssociation, as Trustee for the 4500 Academy Road Distribution Center MortgageLoan, Citibank, N.A., as Custodian for the 4500 Academy Road DistributionCenter Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor forthe 4500 Academy Road Distribution Center Mortgage Loan, U.S. Bank NationalAssociation, as Servicing Function Participant for the 4500 Academy RoadDistribution Center Mortgage Loan, KeyBank National Association, as PrimaryServicer for the One SoHo SquareMortgage Loan, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Special Servicer for the One SoHo Square Mortgage Loan, U.S.Bank National Association, as Trustee for the One SoHo Square Mortgage Loan,U.S. Bank National Association, as Custodian for the One SoHo Square MortgageLoan, Pentalpha Surveillance LLC, as Operating Advisor for the One SoHo SquareMortgage Loan, Wells Fargo Bank, National Association, as Primary Servicer forThe Domain Mortgage Loan,KeyBank National Association, as Special Servicerfor The Domain MortgageLoan, Wilmington Trust, National Association, as Trustee forThe Domain MortgageLoan, Wells Fargo Bank, National Association, as Custodian for The DomainMortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for TheDomain Mortgage Loan, CoreLogic Solutions, LLC., as Servicing FunctionParticipant for The Domain Mortgage Loan, Computershare Trust Company, NationalAssociation, as Servicing Function Participant for the Custodian for The DomainMortgage Loan on and after November 1, 2021, Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer for theWatermark Tempe Mortgage Loan, LNR Partners, LLC, as Special Servicer for theWatermark Tempe MortgageLoan, Wells Fargo Bank, National Association, as Trustee for the WatermarkTempe Mortgage Loan, Wells Fargo Bank, National Association, as Custodian forthe Watermark Tempe Mortgage Loan, Park Bridge Lender Services LLC, asOperating Advisor for the Watermark Tempe Mortgage Loan, Computershare TrustCompany, National Association, as Servicing Function Participant for theCustodian for the Watermark Tempe Mortgage Loan on and after November 1,2021, Midland Loan Services, a Division of PNC Bank, National Association, asPrimary Servicer for the 2 Washington Mortgage Loan, LNR Partners, LLC, asSpecial Servicer for the 2 Washington Mortgage Loan, Wells Fargo Bank, NationalAssociation, as Trustee for the 2 Washington Mortgage Loan, Wells Fargo Bank,National Association, as Custodian for the 2 Washington Mortgage Loan, ParkBridge Lender Services LLC, as Operating Advisor for the 2 Washington MortgageLoan, Computershare Trust Company, National Association, as Servicing FunctionParticipant for the Custodian for the 2 Washington Mortgage Loan on and afterNovember 1, 2021, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Primary Servicer for the Huntsville Office Portfolio MortgageLoan, 3650 REIT Loan Servicing LLC, as Special Servicer for the HuntsvilleOffice Portfolio Mortgage Loan, Wells Fargo Bank, National Association, asTrustee for the Huntsville Office Portfolio Mortgage Loan, Wells Fargo Bank,National Association, as Custodian for the Huntsville Office Portfolio MortgageLoan, Park Bridge Lender Services LLC, as Operating Advisor for the Huntsville OfficePortfolio Mortgage Loan, and Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian for the Huntsville OfficePortfolio Mortgage Loan on and after November 1, 2021.

 

 

 

 

Dated: March 16, 2022 

 

/s/ Kunal K. Singh

Kunal K. Singh

President and Chief Executive Officer

(seniorofficer in charge of securitization of the depositor)