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

 

 

I, Patrick A. Remmert Jr., certify that:

 

1. I have reviewed this report on Form 10-Kand all reports on Form 10-D required to be filed in respect of the period coveredby this report on Form 10-K of the CSAIL 2017-CX9 Commercial Mortgage Trust(the "Exchange Act periodic reports");

 

2. Based on my knowledge, the Exchange Actperiodic reports, taken as a whole, do not contain any untrue statement of amaterial fact or omit to state a material fact necessary to make the statementsmade, in light of the circumstances under which such statements were made, notmisleading with respect to the period covered by this report;

 

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

 

4. Based on my knowledge and the servicercompliance statements required in this report under Item 1123 of Regulation AB,and except as disclosed in the Exchange Act periodic reports, the servicershave fulfilled their obligations under the servicing agreements in all materialrespects; and

 

5. All of the reports on assessment ofcompliance with servicing criteria for asset-backed securities and theirrelated attestation reports on assessment of compliance with servicing criteriafor asset-backed securities required to be included in this report inaccordance with Item 1122 of Regulation AB and Exchange Act Rules 13a-18 and15d-18 have been included as an exhibit to

this report, except as otherwise disclosed inthis report. Any material instances of noncompliance described in such reportshave been disclosed in this report on Form 10-K.

 

In giving the certifications above, I havereasonably relied on information provided to me by the following unaffiliatedparties:

 

KeyBank National Association, as MasterServicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank,National Association, as Trustee and Certificate Administrator, Wells FargoBank, National Association, as Custodian, Pentalpha Surveillance LLC, asOperating Advisor, Computershare Trust Company, National Association, asServicing Function Participant for the Certificate Administrator, ComputershareTrust Company, National Association, as Servicing Function Participant for theCustodian, Wells Fargo Bank, National Association, asPrimary Servicer for the 245 Park Avenue Mortgage Loan, Situs Holdings, LLC, asSpecial Servicer for the 245 Park Avenue Mortgage Loan, Wilmington Trust,National Association, as Trustee for the 245 Park Avenue Mortgage Loan, WellsFargo Bank, National Association, as Custodian for the 245 Park Avenue MortgageLoan, Trimont Real Estate Advisors, LLC, as Operating Advisor for the 245 ParkAvenue Mortgage Loan prior to December 14, 2022, BellOak, LLC, as OperatingAdvisor for the 245 Park Avenue Mortgage Loan on and after December 14, 2022,CoreLogic Solutions, LLC, as Servicing Function Participant for the 245 ParkAvenue Mortgage Loan, Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian for the 245 Park Avenue Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicerfor the 85 Broad Street Mortgage Loan, Midland Loan Services, a Division of PNCBank, National Association, as Special Servicer for the 85 Broad StreetMortgage Loan, Wilmington Trust, National Association, as Trustee for the 85Broad Street Mortgage Loan, Wells Fargo Bank, National Association, asCustodian for the 85 Broad Street Mortgage Loan, Park Bridge Lender ServicesLLC, as Operating Advisor for the 85 Broad Street Mortgage Loan, CoreLogicSolutions, LLC, as Servicing Function Participant for the 85 Broad StreetMortgage Loan, Computershare Trust Company, National Association, asServicing Function Participant for the Custodian for the 85 Broad Street Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicerfor the West Town Mall Mortgage Loan, Wells Fargo Bank, National Association,as Special Servicer for the West Town Mall Mortgage Loan, Wilmington Trust,National Association, as Trustee for the West Town Mall Mortgage Loan, WellsFargo Bank, National Association, as Custodian for the West Town Mall MortgageLoan, CoreLogic Solutions, LLC, as Servicing Function Participant for the WestTown Mall Mortgage Loan, Computershare Trust Company, NationalAssociation, as Servicing Function Participant for the Custodian for the West Town Mall Mortgage Loan, KeyBank National Association, as Primary Servicer for theTwo Independence Square Mortgage Loan, Situs Holdings, LLC, as Special Servicerfor the Two Independence Square Mortgage Loan, Wells Fargo Bank, NationalAssociation, as Trustee for the Two Independence Square Mortgage Loan, WellsFargo Bank, National Association, as Custodian for the Two Independence SquareMortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for theTwo Independence Square Mortgage Loan, Computershare Trust Company,National Association, as Servicing Function Participant for the Custodian forthe Two Independence Square Mortgage Loan, Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Primary Servicer for the IC Leased Fee Hotel Portfolio MortgageLoan, Midland Loan Services, a Division of PNC Bank, National Association, asSpecial Servicer for the IC Leased Fee Hotel Portfolio Mortgage Loan, WellsFargo Bank, National Association, as Trustee for the IC Leased Fee HotelPortfolio Mortgage Loan, Wells Fargo Bank, National Association, as Custodianfor the IC Leased Fee Hotel Portfolio Mortgage Loan, Park Bridge LenderServices LLC, as Operating Advisor for the IC Leased Fee Hotel PortfolioMortgage Loan, Computershare Trust Company, National Association, asServicing Function Participant for the Custodian for the IC Leased Fee Hotel Portfolio Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicerfor the Westin Building Exchange Mortgage Loan, Rialto Capital Advisors, LLC,as Special Servicer for the Westin Building Exchange Mortgage Loan, WilmingtonTrust, National Association, as Trustee for the Westin Building ExchangeMortgage Loan, Wells Fargo Bank, National Association, as Custodian for theWestin Building Exchange Mortgage Loan, Pentalpha Surveillance LLC, asOperating Advisor for the Westin Building Exchange Mortgage Loan, CoreLogicSolutions, LLC, as Servicing Function Participant for the Westin BuildingExchange Mortgage Loan, and Computershare Trust Company, NationalAssociation, as Servicing Function Participant for the Custodian for the Westin Building Exchange Mortgage Loan.

 

 

 

Dated: March 15, 2023

 

 

/s/ Patrick Remmert Jr.

Patrick A. Remmert Jr.

Authorized Signatory

(senior officer in charge of securitization of thedepositor)