EX-31 Rule13a-14(d)/15d-14(d) Certifications.

 

 

I, Anthony Sfarra,certify that:

 

1. I have reviewedthis report on Form 10-K and all reports on Form 10-D required to be filed inrespect of the period covered by this report on Form 10-K of the BANK 2017-BNK4(the "Exchange Act periodic reports");

 

2. Based on myknowledge, the Exchange Act periodic reports, taken as a whole, do not containany untrue statement of a material fact or omit to state a material factnecessary 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 myknowledge, all of the distribution, servicing and other information required tobe provided under Form 10-D for the period covered by this report is includedin the Exchange Act periodic reports;

 

4. Based on myknowledge and the servicer compliance statements required in this report underItem 1123 of Regulation AB, and except as disclosed in the Exchange Actperiodic reports, the servicers have fulfilled their obligations under theservicing agreements in all material respects; and

 

5. All of the reportson assessment of compliance with servicing criteria for asset-backed securitiesand their related attestation reports on assessment of compliance withservicing criteria for asset-backed securities required to be included in thisreport in accordance with Item 1122 of Regulation AB and Exchange Act Rules13a-18 and 15d-18 have been included as an exhibit to this report, except asotherwise disclosed in this report. Any material instances of noncompliancedescribed in such reports have been disclosed in this report on Form 10-K.

 

In giving the certificationsabove, I have reasonably relied on information provided to me by the followingunaffiliated parties:

 

Rialto CapitalAdvisors, LLC, as Special Servicer, Wilmington Trust, National Association, asTrustee, Pentalpha Surveillance LLC, as Operating Advisor, CoreLogic CommercialReal Estate Services, Inc., as Servicing Function Participant, National TaxSearch, LLC, as Servicing Function Participant, Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer for the JWMarriott Desert Springs Mortgage Loan, Wilmington Trust, National Association,as Trustee for the JW Marriott Desert Springs Mortgage Loan, Park Bridge LenderServices LLC, as Operating Advisor for the JW Marriott Desert Springs MortgageLoan, CoreLogic Commercial Real Estate Services, Inc., as Servicing FunctionParticipant for the JW Marriott Desert Springs Mortgage Loan, National TaxSearch, LLC, as Servicing Function Participant for the JW Marriott DesertSprings Mortgage Loan, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Special Servicer for The Summit Birmingham Mortgage Loan,Wilmington Trust, National Association, as Trustee for The Summit BirminghamMortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for TheSummit Birmingham Mortgage Loan, CoreLogic Commercial Real Estate Services,Inc., as Servicing Function Participant for The Summit Birmingham MortgageLoan, National Tax Search, LLC, as Servicing Function Participant for TheSummit Birmingham Mortgage Loan, Rialto Capital Advisors, LLC, as SpecialServicer for the Merrill Lynch Drive Mortgage Loan, Wilmington Trust, NationalAssociation, as Trustee for the Merrill Lynch Drive Mortgage Loan, Park BridgeLender Services LLC, as Operating Advisor for the Merrill Lynch Drive MortgageLoan, CoreLogic Commercial Real Estate Services, Inc., as Servicing FunctionParticipant for the Merrill Lynch Drive Mortgage Loan, National Tax Search,LLC, as Servicing Function Participant for the Merrill Lynch Drive MortgageLoan, 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 Commercial Real EstateServices, Inc., as Servicing Function Participant for The Davenport MortgageLoan, National Tax Search, LLC, as Servicing Function Participant for TheDavenport Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer forthe Key Center Cleveland Mortgage Loan, Deutsche Bank Trust Company Americas,as Trustee for the Key Center Cleveland Mortgage Loan, Deutsche Bank TrustCompany Americas, as Custodian for the Key Center Cleveland Mortgage Loan, ParkBridge Lender Services LLC, as Operating Advisor for the Key Center ClevelandMortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as ServicingFunction Participant for the Key Center Cleveland Mortgage Loan, National TaxSearch, LLC, as Servicing Function Participant for the Key Center ClevelandMortgage Loan, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Primary Servicer for the Pentagon Center Mortgage Loan, MidlandLoan Services, a Division of PNC Bank, National Association, as SpecialServicer for the Pentagon Center Mortgage Loan, and Pentalpha Surveillance LLC,as Operating Advisor for the Pentagon Center Mortgage Loan.

 

 

 

Dated: March 20, 2020

 

 

/s/ Anthony Sfarra

 

 

President

(seniorofficer in charge of securitization of the depositor)