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

 

 

I,Anthony Sfarra, certify that:

 

1. Ihave reviewed this report on Form 10-K and all reports on Form 10-D required tobe filed in respect of the period covered by this report on Form 10-K of theBANK 2017-BNK4 (the "Exchange Act periodic reports");

 

2.Based on my knowledge, the Exchange Act periodic reports, taken as a whole, donot contain any untrue statement of a material fact or omit to state a materialfact necessary to make the statements made, in light of the circumstances underwhich such statements were made, not misleading with respect to the periodcovered by this report;

 

3.Based on my knowledge, all of the distribution, servicing and other informationrequired to be provided under Form 10-D for the period covered by this reportis included in the Exchange Act periodic reports;

 

4.Based on my knowledge and the servicer compliance statements required in thisreport under Item 1123 of Regulation AB, and except as disclosed in theExchange Act periodic reports, the servicers have fulfilled their obligationsunder the servicing agreements in all material respects; and

 

5. Allof the reports on assessment of compliance with servicing criteria forasset-backed securities and their related attestation reports on assessment ofcompliance with servicing criteria for asset-backed securities required to beincluded in this report in accordance with Item 1122 of Regulation AB andExchange Act Rules 13a-18 and 15d-18 have been included as an exhibit to thisreport, except as otherwise disclosed in this report. Any material instances ofnoncompliance described in such reports have been disclosed in this report onForm 10-K.

 

Ingiving the certifications above, I have reasonably relied on informationprovided to me by the following unaffiliated parties:

 

RialtoCapital Advisors, LLC, as Special Servicer, Wilmington Trust, NationalAssociation, as Trustee, Pentalpha Surveillance LLC, as Operating Advisor,CoreLogic Solutions, LLC, as Servicing Function Participant, ComputershareTrust Company, National Association, as Servicing Function Participant for theCertificate Administrator, Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian, Rialto Capital Advisors,LLC, as Special Servicer for the JW Marriott Desert Springs Mortgage Loan,Wilmington Trust, National Association, as Trustee for the JW Marriott DesertSprings Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisorfor the JW Marriott Desert Springs Mortgage Loan, CoreLogic Solutions, LLC., asServicing Function Participant for the JW Marriott Desert Springs MortgageLoan, Computershare Trust Company, National Association, as Servicing FunctionParticipant for the Custodian for the JW Marriott Desert Springs Mortgage Loan,Rialto Capital Advisors, LLC, as Special Servicer for The Summit BirminghamMortgage Loan, Wilmington Trust, National Association, as Trustee for TheSummit Birmingham Mortgage Loan, Park Bridge Lender Services LLC, as OperatingAdvisor for The Summit Birmingham Mortgage Loan, CoreLogic Solutions, LLC., asServicing Function Participant for The Summit Birmingham Mortgage Loan,Computershare Trust Company, National Association, as Servicing FunctionParticipant for the Custodian for The Summit Birmingham Mortgage Loan,Greystone Servicing Company LLC (as successor to C-III Asset Management LLC),as Special Servicer for The Davenport Mortgage Loan, Wilmington Trust, NationalAssociation, as Trustee for The Davenport Mortgage Loan, BellOak, LLC, asOperating Advisor for The Davenport Mortgage Loan, CoreLogic Solutions, LLC, asServicing Function Participant for The Davenport Mortgage Loan, ComputershareTrust Company, National Association, as Servicing Function Participant for theCustodian for The Davenport Mortgage Loan, Rialto Capital Advisors, LLC, asSpecial Servicer for the Key Center Cleveland Mortgage Loan, Deutsche BankTrust Company Americas, as Trustee for the Key Center Cleveland Mortgage Loan,Deutsche Bank Trust Company Americas, as Custodian for the Key Center ClevelandMortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for theKey Center Cleveland Mortgage Loan, CoreLogic Solutions, LLC, as ServicingFunction Participant for the Key Center Cleveland Mortgage Loan, ComputershareTrust Company, National Association, as Servicing Function Participant for theCustodian for the Key Center Cleveland Mortgage Loan, Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer for thePentagon Center Mortgage Loan, Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer for the Pentagon Center Mortgage Loanprior to May 2, 2023, K-Star Asset Management LLC, as Special Servicer for thePentagon Center Mortgage Loan on and after May 2, 2023, Pentalpha SurveillanceLLC, as Operating Advisor for the Pentagon Center Mortgage Loan, andComputershare Trust Company, National Association, as Servicing FunctionParticipant for the Custodian for the Pentagon Center Mortgage Loan.

 

 

 

Dated:March 12, 2024

 

/s/Anthony Sfarra

AnthonySfarra 

President

(seniorofficer in charge of securitization of the depositor)