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

 

 

I, Anthony Sfarra, 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 report onForm 10-K of the BANK 2017-BNK4 (the "Exchange Act periodicreports");

 

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 as disclosedin the Exchange Act periodic reports, the servicers have fulfilled theirobligations 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:

 

Rialto Capital Advisors, LLC, as Special Servicer, WilmingtonTrust, National Association, as Trustee, Pentalpha Surveillance LLC, asOperating Advisor, CoreLogic Solutions, LLC, as Servicing Function Participant,Computershare Trust Company, National Association, as Servicing FunctionParticipant for the Certificate Administrator on and after November 1,2021, Computershare Trust Company, National Association, as Servicing FunctionParticipant for the Custodian on and after November 1, 2021, Midland LoanServices, a Division of PNC Bank, National Association, as Special Servicer forthe JW Marriott Desert Springs Mortgage Loanprior to November 15,2021, Rialto Capital Advisors, LLC, as Special Servicer for the JW MarriottDesert Springs Mortgage Loan on and after November 15, 2021, Wilmington Trust,National Association, as Trustee for the JW Marriott Desert Springs MortgageLoan, Park Bridge Lender Services LLC, as Operating Advisor for the JW MarriottDesert Springs Mortgage Loan, CoreLogic Solutions, LLC., as Servicing FunctionParticipant for the JW Marriott Desert Springs Mortgage Loan, ComputershareTrust Company, National Association, as Servicing Function Participant for theCustodian for the JW Marriott Desert Springs Mortgage Loan on and afterNovember 1, 2021, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Special Servicer for The Summit Birmingham Mortgage Loan priorto November 15, 2021, Rialto Capital Advisors, LLC, as Special Servicer for TheSummit Birmingham Mortgage Loan on and after November 15, 2021, WilmingtonTrust, National Association, as Trustee for The Summit Birmingham MortgageLoan, Park Bridge Lender Services LLC, as Operating Advisor for The SummitBirmingham Mortgage Loan, CoreLogic Solutions, LLC., as Servicing FunctionParticipant for The Summit Birmingham Mortgage Loan, Computershare TrustCompany, National Association, as Servicing Function Participant for theCustodian for The Summit Birmingham Mortgage Loan on and after November 1,2021, Rialto Capital Advisors, LLC, as Special Servicer for the Merrill LynchDrive Mortgage Loan, Wilmington Trust, National Association, as Trustee for theMerrill Lynch Drive Mortgage Loan, Park Bridge Lender Services LLC, asOperating Advisor for the Merrill Lynch Drive Mortgage Loan, CoreLogicSolutions, LLC., as Servicing Function Participant for the Merrill Lynch DriveMortgage Loan, Computershare Trust Company, National Association, as ServicingFunction Participant for the Custodian for the Merrill Lynch Drive MortgageLoan on and after November 1, 2021, Greystone Servicing Company LLC (assuccessor to C-III Asset Management LLC), as Special Servicer for The DavenportMortgage Loan, Wilmington Trust, National Association, as Trustee for TheDavenport Mortgage Loan, Trimont Real Estate Advisors, LLC, as OperatingAdvisor for The Davenport Mortgage Loan, CoreLogic Solutions, LLC, as ServicingFunction Participant for The Davenport Mortgage Loan, Computershare TrustCompany, National Association, as Servicing Function Participant for theCustodian for The Davenport Mortgage Loan on and after November 1, 2021,Rialto Capital Advisors, LLC, as Special Servicer for the Key Center ClevelandMortgage Loan, Deutsche Bank Trust Company Americas, as Trustee for the KeyCenter Cleveland Mortgage Loan, Deutsche Bank Trust Company Americas, asCustodian for the Key Center Cleveland Mortgage Loan, Park Bridge LenderServices LLC, as Operating Advisor for the Key Center Cleveland Mortgage Loan,CoreLogic Solutions, LLC, as Servicing Function Participant for the Key CenterCleveland Mortgage Loan, Computershare Trust Company, National Association, asServicing Function Participant for the Custodian for the Key Center ClevelandMortgage Loan on and after November 1, 2021, 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 MortgageLoan, Pentalpha Surveillance LLC, as Operating Advisor for the Pentagon CenterMortgage Loan, and Computershare Trust Company, National Association, asServicing Function Participant for the Custodian for the Pentagon CenterMortgage Loan on and after November 1, 2021.

 

 

 

Dated: March 11, 2022 

 

/s/ Anthony Sfarra

Anthony Sfarra 

President

(seniorofficer in charge of securitization of the depositor)