**UNITED STATESSECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 10-K**

(Mark One)

**x****  ANNUAL REPORT PURSUANT TO SECTION13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the fiscal year ended December 31, 2021or**

**o**** ****TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from _____ to _____Commission file number of the issuing entity: 333-207361-06**

**Central Index Key Number of the issuing entity:0001716602**

**CSAIL 2017-CX9 Commercial MortgageTrust**

**(exact name of the issuing entity as specified in itscharter)**

** **

**Central Index Key Number of the depositor: 0001654060**

**Credit Suisse Commercial MortgageSecurities Corp.**

**(exact name of the depositor as specified in itscharter)**

** **

**Central Index Key Number of the sponsor: 0001628601**

**Column Financial, Inc.**

**(exact name of the sponsor as specified in its charter)**

** **

**Central Index Key Number of the sponsor: 0001542256**

**Natixis Real Estate Capital LLC**

**(exact name of the sponsor as specified in its charter)**

** **

**Central Index Key Number of the sponsor: 0001632269**

**Benefit Street Partners CRE FinanceLLC**

**(exact name of the sponsor as specified in its charter)**

** **

| **New York****(State or other jurisdiction of  incorporation or organization of**

**the issuing entity)** | **38-4046683**

**38-4046684**

**38-7187317**

**(I.R.S. Employer**

**Identification Numbers)** |
|------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------|

**c/o Wells Fargo Bank, National Association**

**as Certificate Administrator**

**9062 Old Annapolis Road**

**Columbia, MD**

**(Address of principalexecutive offices of the issuing entity)**

**21045**

**(Zip Code)**

**Registrant’s telephone number,including area code:**

**(212) 272-6858**

Securities registered pursuant to Section 12(b) of the Act:

| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
|---------------------|-------------------|-------------------------------------------|
| None                |              |                                      |

 

Securities registered pursuant to Section 12(g) of theAct:  None.

Indicate by check mark if the registrant is a well-knownseasoned issuer, as defined in Rule 405 of the Securities Act.  o Yes ⌧No

Indicate by check mark if the registrant is not required tofile reports pursuant to Section 13 or Section 15(d) of the Act.  o Yes ⌧No

Indicate by check mark whether the registrant (1) has filedall reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter periodthat the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days.  ⌧ Yes oNo

Indicate by check mark whether the registrant has submittedelectronically and posted on its corporate Web site, if any, every InteractiveData File required to be submitted and posted pursuant to Rule 405 ofRegulation S-T (Section 232.405 of this chapter) during the preceding 12 months(or for such shorter period that the registrant was required to submit and postsuch files).

Not applicable.

Indicate by check mark if disclosure of delinquent filerspursuant to Item 405 of Regulation S-K (Section 229.405 of this chapter) is notcontained herein, and will not be contained, to the best of registrant’sknowledge, in definitive proxy or information statements incorporated byreference in Part III of this Form 10-K or any amendment to this Form10-K.   

Not applicable.

Indicate by check mark whether the registrant is a largeaccelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “largeaccelerated filer,” “accelerated filer,” “smaller reporting company,” and“emerging growth company” in Rule 12b-2 of the Exchange Act.

Large acceleratedfiler        o                                                                                                       Acceleratedfiler                                     o

Non-acceleratedfiler          ⌧  (Do not check if asmaller reporting company)                          Smaller reporting company                    o

                                                                                                                                                       Emerging growthcompany                    o

If an emerging growth company, indicate by check mark if theregistrant has elected not to use the extended transition period for complyingwith any new or revised financial accounting standards provided pursuant toSection 13(a) of the Exchange Act.  o

Indicate by check mark whether the registrant has filed areport on and attestation to its management’s assessment of the effectivenessof its internal control over financial reporting under Section 404(b) of theSarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firmthat prepared or issued its audit report. o

Indicate by check mark whether the registrant is a shell company(as defined in Rule 12b-2 of the Act).  oYes ⌧ No

State the aggregate market value of the voting and non-votingcommon equity held by non-affiliates computed by reference to the price atwhich the common equity was last sold, or the average bid and asked price ofsuch common equity, as of the last business day of the registrant’s mostrecently completed second fiscal quarter.

Not applicable.

Indicate by check mark whether the registrant has filed alldocuments and reports required to be filed by Section 12, 13 or 15(d) of theSecurities Exchange Act of 1934 subsequent to the distribution of securitiesunder a plan confirmed by a court.  oYes oNo

Not applicable.

Indicate the number of shares outstanding of each of theregistrant’s classes of common stock, as of the latest practicable date.

Not applicable.

**DOCUMENTS INCORPORATED BY REFERENCE**

** **

List hereunder the following documents if incorporated byreference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) intowhich the document is incorporated: (1) Any annual report to security holders;(2) Any proxy or information statement; and (3) Any prospectus filed pursuantto Rule 424(b) or (c) under the Securities Act of 1933. The listed documentsshould be clearly described for identification purposes (e.g., annual report tosecurity holders for fiscal year ended December 24, 1980).

Not applicable.

 

The Park Center Phase I Mortgage Loan, TheBoulders Resort & Spa Mortgage Loan, the JW Marriott Chicago Mortgage Loan,the Center 78 Mortgage Loan, the 300 Montgomery Mortgage Loan, the AcropolisGarden Mortgage Loan, the Carolina Hotel Portfolio Mortgage Loan and the ApexFort Washington Mortgage Loan, which constituted approximately 9.3%, 5.8%,4.7%, 4.2%, 4.2%, 2.9%, 2.3% and 2.0%, respectively, of the asset pool of theissuing entity as of its cut-off date, are each an asset of the issuing entityand are each part of a loan combination that includes (a) with respect to thePark Center Phase I Mortgage Loan, one other *pari passu* loan, which isnot an asset of the issuing entity, (b) with respect to The Boulders Resort& Spa Mortgage Loan, one other *pari passu* loan, which is not anasset of the issuing entity, (c) with respect to the JW Marriott ChicagoMortgage Loan, two other *pari passu* loans and three subordinatecompanion loans, each of which are not assets of the issuing entity, (d) withrespect to the Center 78 Mortgage Loan, one other *pari passu* loan andone subordinate companion loan, each of which are not assets of the issuingentity, (e) with respect to the 300 Montgomery Mortgage Loan, one other *paripassu* loan, which is not an asset of the issuing entity, (f) with respectto the Acropolis Garden Mortgage Loan, one other *pari passu* loan, whichis not an asset of the issuing entity, (g) with respect to the Carolina HotelPortfolio Mortgage Loan, one other *pari passu* loan, which is not anasset of the issuing entity and (h) with respect to the Apex Fort WashingtonMortgage Loan, two other *pari passu* loans, which are not assets of theissuing entity. These loan combinations, including the Park Center Phase IMortgage Loan, The Boulders Resort & Spa Mortgage Loan, the JW MarriottChicago Mortgage Loan, the Center 78 Mortgage Loan, the 300 Montgomery MortgageLoan, the Acropolis Garden Mortgage Loan, the Carolina Hotel Portfolio MortgageLoan and the Apex Fort Washington Mortgage Loan, are being serviced andadministered pursuant to the Pooling and Servicing Agreement, which isincorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K. 

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the 245 Park Avenue Mortgage Loan, whichconstituted approximately 6.3% of the asset pool of the issuing entity as ofits cut-off date.  The 245 Park Avenue Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the 245 ParkAvenue Mortgage Loan, twenty-one other *pari passu* loans and fivesubordinate companion loans, which are not assets of the issuing entity. A *paripassu* portion of the loan combination was securitized in the 245 ParkAvenue Trust 2017-245P transaction (the “245 Park Avenue 2017-245PTransaction”). This loan combination, including the 245 Park AvenueMortgage Loan, is being serviced and administered pursuant to the trust andservicing agreement for the 245 Park Avenue 2017-245P Transaction, which isincorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the 85 Broad Street Mortgage Loan, whichconstituted approximately 5.2% of the asset pool of the issuing entity as ofits cut-off date.  The 85 Broad Street Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the 85 BroadStreet Mortgage Loan, three other *pari passu* loans and three subordinatecompanion loans, which are not assets of the issuing entity. A *pari passu*portion of the loan combination was securitized in the CSAIL 2017-C8 CommercialMortgage Trust transaction, Commission File Number 333-207361-05 (the “CSAIL2017-C8 Transaction”). This loan combination, including the 85 Broad StreetMortgage Loan, is being serviced and administered pursuant to the pooling andservicing agreement for the CSAIL 2017-C8 Transaction, which is incorporated byreference as Exhibit 4.3 to this Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the West Town Mall Mortgage Loan, whichconstituted approximately 3.5% of the asset pool of the issuing entity as ofits cut-off date.  The West Town Mall Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the West TownMall Mortgage Loan, three other *pari passu* loans and two subordinatecompanion loans, which are not assets of the issuing entity. A *pari passu*portion of the loan combination was securitized in the West Town Mall Trust2017-KNOX transaction (the “WTOWN 2017-KNOX Transaction”). This loancombination, including the West Town Mall Mortgage Loan, is being serviced andadministered pursuant to the trust and servicing agreement for the WTOWN2017-KNOX Transaction, which is incorporated by reference as Exhibit 4.4 tothis Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the Two Independence Square Mortgage Loan, whichconstituted approximately 6.4% of the asset pool of the issuing entity as ofits cut-off date.  The Two Independence Square Mortgage Loan is an assetof the issuing entity and is part of a loan combination that includes the TwoIndependence Square Mortgage Loan, two other *pari passu* loans and onesubordinate companion loan, which are not assets of the issuing entity. A *paripassu* portion of the loan combination was securitized in the CSMC 2017-MOONtransaction (the “CSMC 2017-MOON Transaction”). This loan combination,including the Two Independence Square Mortgage Loan, is being serviced andadministered pursuant to the trust and servicing agreement for the CSMC2017-MOON Transaction, which is incorporated by reference as Exhibit 4.5 tothis Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the IC Leased Fee Hotel Portfolio Mortgage Loan,which constituted approximately 1.3% of the asset pool of the issuing entity asof its cut-off date.  The IC Leased Fee Hotel Portfolio Mortgage Loan isan asset of the issuing entity and is part of a loan combination that includesthe IC Leased Fee Hotel Portfolio Mortgage Loan and three other *pari passu*loans, which are not assets of the issuing entity. A *pari passu* portionof the loan combination was securitized in the UBS Commercial Mortgage Trust2017-C3 transaction, Commission File Number 333-207340-03 (the “UBS 2017-C3Transaction”). This loan combination, including the IC Leased Fee HotelPortfolio Mortgage Loan, is being serviced and administered pursuant to thepooling and servicing agreement for the UBS 2017-C3 Transaction, which isincorporated by reference as Exhibit 4.6 to this Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the Westin Building Exchange Mortgage Loan,which constituted approximately 7.9% of the asset pool of the issuing entity asof its cut-off date.  The Westin Building Exchange Mortgage Loan is anasset of the issuing entity and is part of a loan combination that includes theWestin Building Exchange Mortgage Loan and one other *pari passu* loan,which is not an asset of the issuing entity. The other *pari passu*portion of the loan combination was securitized in the BANK 2017-BNK7transaction, Commission File Number 333-206677-18 (the “BANK 2017-BNK7Transaction”). This loan combination, including the Westin BuildingExchange Mortgage Loan, is being serviced and administered pursuant to thepooling and servicing agreement for the BANK 2017-BNK7 Transaction, which isincorporated by reference as Exhibit 4.7 to this Annual Report on Form 10-K.

The master servicer of a poolingand servicing agreement or trust and servicing agreement also functions as theprimary servicer of the related mortgage loans serviced and administeredpursuant to such agreement unless a separate primary servicer is identifiedherein.  If this report does not identify a separate primary servicer, theservicer compliance statement provided by the master servicer under any suchagreement also encompasses its responsibilities as primary servicer of therelated mortgage loan or mortgage loans.

KeyBank National Association isthe master servicer of the mortgage loans serviced under the Pooling andServicing Agreement and the primary servicer of the Two Independence SquareMortgage Loan. As a result, KeyBank National Association is a “servicer” asdefined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities describedabove, because it is servicing mortgage loans that constituted 10% or more ofthe assets of the issuing entity as of its cut-off date. The assessments ofcompliance with applicable servicing criteria, accountants’ attestation reportsand servicer compliance statements delivered by KeyBank National Association inthe capacities described above are listed in the Exhibit Index.

Rialto Capital Advisors, LLC isthe special servicer of the mortgage loans serviced under the Pooling andServicing Agreement and the Westin Building Exchange Mortgage Loan. As aresult, Rialto Capital Advisors, LLC is a “servicer” as defined in Item1108(a)(2)(iii) of Regulation AB, in the capacities described above, because itis servicing mortgage loans that constituted 10% or more of the assets of theissuing entity as of its cut-off date. The assessments of compliance withapplicable servicing criteria, accountants’ attestation reports and servicercompliance statements delivered by Rialto Capital Advisors, LLC in thecapacities described above are listed in the Exhibit Index.

Wells Fargo Bank, NationalAssociation is the certificate administrator of the mortgage loans servicedunder the Pooling and Servicing Agreement, the primary servicer of the WestinBuilding Exchange Mortgage Loan, the 245 Park Avenue Mortgage Loan and the 85Broad Street Mortgage Loan and the primary servicer and special servicer of theWest Town Mall Mortgage Loan. As a result, Wells Fargo Bank, NationalAssociation is a “servicer” as defined in Item 1108(a)(2)(iii) of RegulationAB, in the capacities described above, because it is servicing mortgage loansthat constituted 10% or more of the assets of the issuing entity as of itscut-off date. The assessments of compliance with applicable servicing criteria,accountants’ attestation reports and servicer compliance statements deliveredby Wells Fargo Bank, National Association in the capacities described above arelisted in the Exhibit Index.

Wells Fargo Bank, National Association is the custodian ofthe mortgage loans serviced under the Pooling and Servicing Agreement, theWestin Building Exchange Mortgage Loan, the Two Independence Square MortgageLoan, the 245 Park Avenue Mortgage Loan, the 85 Broad Street Mortgage Loan, theWest Town Mall Mortgage Loan and the IC Leased Fee Hotel Portfolio MortgageLoan.  As a result, Wells Fargo Bank, National Association is a servicingfunction participant in the capacities described above, because it is servicingmortgage loans that constituted 5% or more of the assets of the issuing entityas of its cut-off date. The assessments of compliance with applicable servicingcriteria and accountants’ attestation reports delivered by Wells Fargo Bank,National Association in the capacities described above are listed in theExhibit Index.

Midland Loan Services, a Division of PNC Bank, NationalAssociation is the special servicer of the 85 Broad Street Mortgage Loan andthe primary servicer and special servicer of the IC Leased Fee Hotel PortfolioMortgage Loan.  These mortgage loans constitute more than 5%, but lessthan 10%, of the pool assets of the issuing entity.  Therefore, the Depositorincluded in this Annual Report on Form 10-K an assessment of compliance withapplicable servicing criteria for Midland Loan Services, a Division of PNCBank, National Association and an accountants’ attestation report pursuant toItem 1122 of Regulation AB because Midland Loan Services, a Division of PNCBank, National Association is servicing more than 5% of the pool assets. However, the Depositor is not required to include in this Annual Report on Form10-K a servicer compliance statement pursuant to Item 1123 of Regulation AB ofMidland Loan Services, a Division of PNC Bank, National Association becauseMidland Loan Services, a Division of PNC Bank, National Association is anunaffiliated servicer servicing less than 10% of pool assets.

Park Bridge Lender Services LLC is the operating advisor ofthe Two Independence Square Mortgage Loan, the 85 Broad Street Mortgage Loanand the IC Leased Fee Hotel Portfolio Mortgage Loan.  As a result, ParkBridge Lender Services LLC is a servicing function participant in thecapacities described above, because it is servicing mortgage loans thatconstituted 5% or more of the assets of the issuing entity as of its cut-offdate. The assessments of compliance with applicable servicing criteria andaccountants’ attestation reports delivered by Park Bridge Lender Services LLCin the capacities described above are listed in the Exhibit Index.

AEGON USA Realty Advisors, LLC isthe special servicer of the Two Independence Square Mortgage Loan and the 245Park Avenue Mortgage Loan, which constituted approximately 6.4% and 6.3%,respectively, of the asset pool of the issuing entity as of its cut-off date.In accordance with the Compliance and Disclosure Interpretations, Section200.03 (Rules 13a-18 and 15d-18, Servicer’s Assessment of Compliance), thispercentage must be reduced *pro rata*because it was only acting asspecial servicer of the Two Independence Square Mortgage Loan from January 1,2021 to March 10, 2021 and the 245 Park Avenue Mortgage Loan from January 1,2021 to April 12, 2021. As a result, AEGON USA Realty Advisors, LLC falls belowthe *de minimis*requirements in Item 1122 of Regulation AB and no suchassessment or attestation is required. In addition, AEGON USA Realty Advisors,LLC is an unaffiliated party that, as a result of such pro rata reduction ofsuch percentage, is not a “servicer” that meets the criteria in Item1108(a)(2)(i) through (iii) of Regulation AB and so no servicer compliancestatement is required.

Situs Holdings, LLC is the specialservicer of the Two Independence Square Mortgage Loan and the 245 Park AvenueMortgage Loan, which constituted approximately 6.4% and 6.3%, respectively, ofthe asset pool of the issuing entity as of its cut-off date. In accordance withthe Compliance and Disclosure Interpretations, Section 200.03 (Rules 13a-18 and15d-18, Servicer’s Assessment of Compliance), this percentage must be reducedpro rata because it was only acting as special servicer of the Two IndependenceSquare Mortgage Loan from March 11, 2021 to December 31, 2021 and the 245 ParkAvenue Mortgage Loan from April 13, 2021 to December 31, 2021. As a result,Situs Holdings, LLC is an unaffiliated party that, as a result of such pro ratareduction of such percentage, is not a “servicer” that meets the criteria inItem 1108(a)(2)(i) through (iii) of Regulation AB and so no servicer compliancestatement is required.

Wells Fargo Bank, NationalAssociation acts as trustee of the Park Center Phase I Mortgage Loan, TheBoulders Resort & Spa Mortgage Loan, the JW Marriott Chicago Mortgage Loan,the Center 78 Mortgage Loan, the 300 Montgomery Mortgage Loan, the AcropolisGarden Mortgage Loan, the Carolina Hotel Portfolio Mortgage Loan, the Apex FortWashington Mortgage Loan, the Two Independence Square Mortgage Loan and the ICLeased Fee Hotel Portfolio Mortgage Loan.  Pursuant to the Pooling andServicing Agreement, the trust and servicing agreement for the CSMC 2017-MOONTransaction and the pooling and servicing agreement for the UBS 2017-C3 Transaction,the trustee is required to provide an assessment of compliance with applicableservicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB(regarding advances of funds or guarantees regarding collections, cash flows ordistributions, and any interest or other fees charged for such advances, aremade, reviewed and approved as specified in the transaction agreements).However, during the reporting period, the trustee did not perform any servicingfunction with respect to the servicing criteria specified in Item1122(d)(2)(iii) of Regulation AB.  The master servicer or the specialservicer, to the extent required, performed the servicing function identifiedwith respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party includedItem 1122(d)(2)(iii) of Regulation AB in the assessment of compliance withapplicable servicing criteria and accountant’s attestation report for thesubject transaction.  As a result, this Annual Report on Form 10-K doesnot include an assessment of compliance with applicable servicing criteria ofthe trustee. One or more other servicers of the Park Center Phase I MortgageLoan, The Boulders Resort & Spa Mortgage Loan, the JW Marriott ChicagoMortgage Loan, the Center 78 Mortgage Loan, the 300 Montgomery Mortgage Loan,the Acropolis Garden Mortgage Loan, the Carolina Hotel Portfolio Mortgage Loan,the Apex Fort Washington Mortgage Loan, the Two Independence Square MortgageLoan and the IC Leased Fee Hotel Portfolio Mortgage Loan have delivered one ormore assessments of compliance with respect to Item 1122(d)(2)(iii) ofRegulation AB.

Wilmington Trust, NationalAssociation acts as trustee of the 245 Park Avenue Mortgage Loan, the 85 BroadStreet Mortgage Loan, the West Town Mall Mortgage Loan and the Westin BuildingExchange Mortgage Loan.  Pursuant to the trust and servicing agreement forthe 245 Park Avenue 2017-245P Transaction, the pooling and servicing agreementfor the CSAIL 2017-C8 Transaction, the trust and servicing agreement for theWTOWN 2017-KNOX Transaction and the pooling and servicing agreement for theBANK 2017-BNK7 Transaction, the trustee is required to provide an assessment ofcompliance with applicable servicing criteria solely with respect to Item1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guaranteesregarding collections, cash flows or distributions, and any interest or otherfees charged for such advances, are made, reviewed and approved as specified inthe transaction agreements). However, during the reporting period, the trusteedid not perform any servicing function with respect to the servicing criteriaspecified in Item 1122(d)(2)(iii) of Regulation AB.  The master serviceror the special servicer, to the extent required, performed the servicingfunction identified with respect to Item 1122(d)(2)(iii) of Regulation AB, andeach such party included Item 1122(d)(2)(iii) of Regulation AB in theassessment of compliance with applicable servicing criteria and accountant’sattestation report for the subject transaction.  As a result, this AnnualReport on Form 10-K does not include an assessment of compliance withapplicable servicing criteria of the trustee. One or more other servicers ofthe 245 Park Avenue Mortgage Loan, the 85 Broad Street Mortgage Loan, the WestTown Mall Mortgage Loan and the Westin Building Exchange Mortgage Loan havedelivered one or more assessments of compliance with respect to Item1122(d)(2)(iii) of Regulation AB.

This Annual Report on Form 10-Kincludes assessments of compliance with applicable servicing criteria andaccountants’ attestation reports from CoreLogic Solutions, LLC.  Thisentity was engaged by the primary servicer of the 245 Park Avenue MortgageLoan, the 85 Broad Street Mortgage Loan, the West Town Mall Mortgage Loan andthe Westin Building Exchange Mortgage Loan to remit tax payments received fromthe escrow accounts of borrowers to local taxing authorities, to report taxamounts due, to verify tax parcel information, and to verify non-escrow taxpayments. These servicing functions are included within the servicing criteriaset forth in Items 1122(d)(4)(xi) and 1122(d)(4)(xii) of Regulation AB. Therefore, under the principles-based definition of “servicer” set forth inItem 1101(j) of Regulation AB that looks to the functions that an entityperforms, this vendor is a “servicer” for the purposes of Item 1122 ofRegulation AB.  *See* Compliance and Disclosure Interpretations,Section 301.01 (Item 1101(j)).

This Annual Report on Form 10-Kincludes an assessment of compliance with applicable servicing criteria,accountants’ attestation report and servicer compliance statement fromComputershare Trust Company, National Association (“CTCNA”).  CTCNA wasengaged by Wells Fargo Bank, National Association (“Wells Fargo”), in itscapacity as certificate administrator and custodian, to perform certainspecified servicing functions identified in the assessment of compliance withapplicable servicing criteria and accountants’ attestation reports.  WellsFargo engaged CTCNA in connection with the sale of Wells Fargo’s corporatetrust services business to CTCNA and its affiliates.  Further, under theprinciples-based definition of “servicer” set forth in Item 1101(j) ofRegulation AB that looks to the functions that an entity performs, this partyis a “servicer” for the purposes of Item 1123 of Regulation AB.  SeeCompliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

Theassessments of compliance with applicable servicing criteria, accountants’attestation reports and servicer compliance statements of the certificateadministrator of the 245 Park Avenue Mortgage Loan, the 85 Broad StreetMortgage Loan, the West Town Mall Mortgage Loan, the Two Independence SquareMortgage Loan, the IC Leased Fee Hotel Portfolio Mortgage Loan and the WestinBuilding Exchange Mortgage Loan are omitted from this Annual Report on Form10-K as the certificate administrator pursuant to the related pooling andservicing agreement or trust and servicing agreement does not perform anyactivities that address servicing criteria with respect to the issuing entityand because they are each not a “servicer” that meets the criteria in Item1108(a)(2)(i) through (iii) of Regulation AB.

With respect to the pari passuloan combinations that include the 85 Broad Street Mortgage Loan, the IC LeasedFee Hotel Portfolio Mortgage Loan, the Two Independence Square Mortgage Loanand the 245 Park Avenue Mortgage Loan, (i) the reports on assessment ofcompliance with servicing criteria and attestation reports on assessment of compliancewith servicing criteria of AEGON USA Realty Advisors, LLC as special servicerof the Two Independence Square Mortgage Loan prior to March 11, 2021 and the245 Park Avenue Mortgage Loan prior to April 13, 2021 listed on the ExhibitIndex are omitted from this Annual Report on Form 10-K for the reasons setforth in the Explanatory Notes above; and (ii) the servicer compliancestatements of and Midland Loan Services, a Division of PNC Bank, NationalAssociation as special servicer of the 85 Broad Street Mortgage Loan and theprimary servicer and special servicer of IC Leased Fee Hotel Portfolio MortgageLoan, listed on the Exhibit Index are omitted from this Annual Report on Form10-K as they are not required by Item 1123 of Regulation AB to be included onthis Annual Report on Form 10-K because it is an unaffiliated party that is nota “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) ofRegulation AB, and the servicer compliance statements of AEGON USA RealtyAdvisors, LLC as special servicer of the Two Independence Square Mortgage Loanprior to March 11, 2021 and the 245 Park Avenue Mortgage Loan prior to April13, 2021 and Situs Holdings, LLC as special servicer of the Two IndependenceSquare Mortgage Loan on and after March 11, 2021 and the 245 Park AvenueMortgage Loan on and after April 13, 2021 listed on the Exhibit Index isomitted from this Annual Report on From 10-K for the reasons set forth in theExplanatory Notes above.

**PART I**

**Item 1.  Business.**

Omitted.

**Item 1A.  Risk Factors.**

Omitted.

**Item 1B.  Unresolved Staff Comments.**

None.

**Item 2.  Properties.**

Omitted.

**Item 3.  Legal Proceedings.**

Omitted.

**Item 4.  Mine Safety Disclosures.**

Not applicable.

**PART II**

**Item 5.  Market for Registrant’s Common Equity,Related Stockholder Matters and Issuer Purchases of Equity Securities.**

Omitted.

**Item 6.  Selected Financial Data.**

Omitted.

**Item 7.  Management’s Discussion and Analysis ofFinancial Condition and Results of Operations.**

Omitted.

**Item 7A.  Quantitative and Qualitative DisclosuresAbout Market Risk.**

Omitted.

**Item 8.  Financial Statements and Supplementary Data.**

Omitted.

**Item 9.  Changes in and Disagreements WithAccountants on Accounting and Financial Disclosure.**

Omitted.

**Item 9A.  Controls and Procedures.**

Omitted.

**Item 9B.  Other Information.**

None.

**PART III**

**Item 10.  Directors, Executive Officers and CorporateGovernance.**

Omitted.

**Item 11.  Executive Compensation.**

Omitted.

**Item 12.  Security Ownership of Certain BeneficialOwners and Management and Related Stockholder Matters.**

Omitted.

**Item 13.  Certain Relationships and RelatedTransactions, and Director Independence.**

Omitted.

**Item 14.  Principal Accounting Fees and Services.**

Omitted.

**ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB**

**Item 1112(b) of Regulation AB, Significant ObligorFinancial Information.**

No single obligor represents 10% or more of the pool assetsheld by the issuing entity. 

 

**Item 1114(b)(2) of Regulation AB, Significant EnhancementProvider Financial Information.**

No entity or group of affiliated entities provides any external creditenhancement or other support for the certificates within this transaction asdescribed under Item 1114(a) of Regulation AB.

**Item 1115(b) of Regulation AB, Certain Derivatives Instruments(Financial Information).**

No entity or group of affiliated entities provides anyderivative instruments or other support for the certificates within thistransaction as described under Item 1115 of Regulation AB.

**Item 1117 of Regulation AB, Legal Proceedings.**

The registrant knows of no material pending legal proceedinginvolving the trust or any party related to the trust, other than routinelitigation incidental to the duties of those respective parties, and thefollowing, with respect to Wells Fargo Bank, National Association, as Trustee,Certificate Administrator and Custodian. 

 

In December 2014, Phoenix LightSF Limited and certain related entities and the National Credit UnionAdministration (NCUA) filed complaints in the United States District Court forthe Southern District of New York against Wells Fargo Bank, alleging claimsagainst Wells Fargo Bank in its capacity as trustee for a number of residentialmortgage-backed securities trusts. Complaints raising similar allegations havebeen filed by Commerzbank AG in the Southern District of New York and by IKBInternational and IKB Deutsche Industriebank in New York state court. In eachcase, the plaintiffs allege that Wells Fargo Bank, as trustee, caused losses toinvestors, and plaintiffs assert causes of action based upon, among otherthings, the trustee’s alleged failure to notify and enforce repurchaseobligations of mortgage loan sellers for purported breaches of representationsand warranties, notify investors of alleged events of default, and abide byappropriate standards of care following alleged events of default. Wells FargoBank previously settled two class action lawsuits with similar allegations thatwere filed in November 2014 and December 2016 by institutional investors in theSouthern District of New York and New York state court, respectively. Inaddition, Park Royal I LLC and Park Royal II LLC have filed complaints in NewYork state court alleging Wells Fargo Bank, N.A., as trustee, failed to takeappropriate actions upon learning of defective mortgage loan documentation. InMarch 2021, the Company entered into an agreement to resolve the case filed bythe NCUA.

 

In addition to the foregoingcases, in August 2014 and August 2015 Nomura Credit & Capital Inc. (“Nomura”)and Natixis Real Estate Holdings, LLC (“Natixis”) filed a total of seventhird-party complaints against Wells Fargo Bank in New York state court. In theunderlying first-party actions, Nomura and Natixis have been sued for allegedbreaches of representations and warranties made in connection with residentialmortgage-backed securities sponsored by them. In the third-party actions,Nomura and Natixis allege that Wells Fargo Bank, as master servicer, primaryservicer or securities administrator, failed to notify Nomura and Natixis oftheir own breaches, failed to properly oversee the primary servicers, andfailed to adhere to accepted servicing practices. Natixis additionally allegesthat Wells Fargo Bank failed to perform default oversight duties. Wells FargoBank has asserted counterclaims alleging that Nomura and Natixis failed toprovide Wells Fargo Bank notice of their representation and warranty breaches.

 

With respect to each of the foregoing litigations, WellsFargo Bank believes plaintiffs' claims are without merit and intends to contestthe claims vigorously, but there can be no assurances as to the outcome of thelitigations or the possible impact of the litigations on Wells Fargo Bank orthe related RMBS trusts.

**Item 1119 of Regulation AB, Affiliations and CertainRelationships and Related Transactions.**

The information regarding this Item has been previouslyprovided in the prospectus of the Registrant relating to the issuing entityfiled on September 29, 2017 pursuant to Rule 424(b)(2).

**Item 1122 of Regulation AB, Compliance with ApplicableServicing Criteria.**

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the mortgage loans are attachedhereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AAto the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1to this Annual Report on Form 10-K is a chart identifying the entitiesparticipating in a servicing function for the transaction responsible for eachapplicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the 245 Park Avenue Mortgage Loan,which is being serviced and administered pursuant to the trust and servicingagreement for the 245 Park Avenue 2017-245P Transaction, are attached heretounder Item 15 to this Annual Report on Form 10-K. Attached as Exhibit L to thetrust and servicing agreement for the 245 Park Avenue 2017-245P Transactionincorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K isa chart identifying the entities participating in a servicing function for the245 Park Avenue 2017-245P Transaction responsible for each applicable servicingcriteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the 85 Broad Street Mortgage Loan,which is being serviced and administered pursuant to the pooling and servicingagreement for the CSAIL 2017-C8 Transaction, are attached hereto under Item 15to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling andservicing agreement for the CSAIL 2017-C8 Transaction incorporated by referenceas Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying theentities participating in a servicing function for the CSAIL 2017-C8Transaction responsible for each applicable servicing criteria set forth inItem 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the West Town Mall Mortgage Loan,which is being serviced and administered pursuant to the trust and servicingagreement for the WTOWN 2017-KNOX Transaction, are attached hereto under Item15 to this Annual Report on Form 10-K. Attached as Exhibit L to the trust andservicing agreement for the WTOWN 2017-KNOX Transaction incorporated byreference as Exhibit 4.4 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the WTOWN2017-KNOX Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the Two Independence Square MortgageLoan, which is being serviced and administered pursuant to the trust andservicing agreement for the CSMC 2017-MOON Transaction, are attached hereto underItem 15 to this Annual Report on Form 10-K. Attached as Exhibit L to the trustand servicing agreement for the CSMC 2017-MOON Transaction incorporated byreference as Exhibit 4.5 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the CSMC2017-MOON Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the IC Leased Fee Hotel PortfolioMortgage Loan, which is being serviced and administered pursuant to the poolingand servicing agreement for the UBS 2017-C3 Transaction, are attached heretounder Item 15 to this Annual Report on Form 10-K. Attached as Exhibit Z to thepooling and servicing agreement for the UBS 2017-C3 Transaction incorporated byreference as Exhibit 4.6 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the UBS2017-C3 Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the Westin Building Exchange MortgageLoan, which is being serviced and administered pursuant to the pooling andservicing agreement for the BANK 2017-BNK7 Transaction, are attached heretounder Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to thepooling and servicing agreement for the BANK 2017-BNK7 Transaction incorporatedby reference as Exhibit 4.7 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the BANK2017-BNK7 Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

The report on assessment of compliance for the twelve monthsended December 31, 2021, furnished pursuant to Item 1122 of Regulation AB byAegon USA Realty Advisors, LLC (“Aegon” or the “Company”), as special servicer,discloses that the following material instance of noncompliance occurred withrespect to its platform:

The examination performed by PWC identified an instance ofmaterial noncompliance with the servicing criteria set forth in Item1122(d)(3)(i)(A) of Regulation AB applicable to the Company during year endedDecember 31, 2021. More specifically, for the only active special serviced dealsubject to Item 1122(d)(3)(i)(A), the report to the investors was not preparedin accordance with the timeframes and other terms set forth in the transactionagreements for the period of January 1, 2021 to January 21, 2021. UBSCM 2017-C4is the specific deal related to the aforementioned finding. No other dealswithin Aegon’s CMBS special servicing portfolio were related to or impacted bythis instance of non-compliance.

Management acknowledges the timeframe for reporting for thisactive special serviced deal was missed by two days. Despite the timingdiscrepancy, there was no impact on any investor reporting, issuing, orservicing. No additional testing was available for this particular criteria dueto the downsizing of the CMBS portfolio given Aegon’s pending exit from thebusiness line.

**Item 1123 of Regulation AB, Servicer Compliance Statement.**

The servicer compliance statements are attached as Exhibitsto this Annual Report on Form 10-K.

The servicer compliance statement for the twelve months endedDecember 31, 2021, furnished pursuant to Item 1123 of Regulation AB by AegonUSA Realty Advisors, LLC (“Aegon” or the “Company”), as special servicer,discloses that the following material instance of noncompliance occurred withrespect to its platform:

The examination performed by PWC identified an instance ofmaterial noncompliance with the servicing criteria set forth in Item1122(d)(3)(i)(A) of Regulation AB applicable to the Company during year endedDecember 31, 2021. More specifically, for the only active special serviced dealsubject to Item 1122(d)(3)(i)(A), the report to the investors was not preparedin accordance with the timeframes and other terms set forth in the transactionagreements for the period of January 1, 2021 to January 21, 2021. UBSCM 2017-C4is the specific deal related to the aforementioned finding. No other dealswithin Aegon’s CMBS special servicing portfolio were related to or impacted bythis instance of non-compliance.

Management acknowledges the timeframe for reporting for thisactive special serviced deal was missed by two days. Despite the timingdiscrepancy, there was no impact on any investor reporting, issuing, orservicing. No additional testing was available for this particular criteria dueto the downsizing of the CMBS portfolio given Aegon’s pending exit from thebusiness line.

 

**PART IV**

**Item 15. Exhibits, Financial Statement Schedules**

(a) The following is a list of documents filed as part ofthis Annual Report on Form 10-K:

(1) Not applicable

(2) Not applicable

(3) See below

4.1          Pooling and Servicing Agreement, dated as of September 1,2017, by and among Credit Suisse Commercial Mortgage Securities Corp., asDepositor, KeyBank National Association, as Master Servicer, Rialto CapitalAdvisors, LLC, as Special Servicer, Pentalpha Surveillance LLC as AssetRepresentations Reviewer, Wells Fargo Bank, National Association, asCertificate Administrator and as Trustee and Pentalpha Surveillance LLC, asOperating Advisor and as Asset Representation Reviewer (filed as Exhibit 4.1 tothe registrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.2          Trust and Servicing Agreement, dated as of May 30, 2017,by and among J.P. Morgan Chase Commercial Mortgage Securities Corp., asDepositor, Wells Fargo Bank, National Association, as Servicer, AEGON USARealty Advisors, LLC, as Special Servicer, Wells Fargo Bank, NationalAssociation, as Certificate Administrator, Wilmington Trust, NationalAssociation, as Trustee and Trimont Real Estate Advisors, LLC, as OperatingAdvisor (filed as Exhibit 4.4 to the registrant’s Current Report on Form 8-Kfiled on September 29, 2017 under Commission File No. 333-207361-06 andincorporated by reference herein).

4.3          Pooling and Servicing Agreement, dated as of June 1,2017, by and among Credit Suisse Commercial Mortgage Securities Corp., asDepositor, Wells Fargo Bank, National Association, as Master Servicer, MidlandLoan Services, a Division of PNC Bank, National Association, as SpecialServicer, Wells Fargo Bank, National Association, as Certificate Administrator,Wilmington Trust, National Association, as Trustee and Park Bridge LenderServices LLC, as Operating Advisor and as Asset Representation Reviewer (filedas Exhibit 4.5 to the registrant’s Current Report on Form 8-K filed onSeptember 29, 2017 under Commission File No. 333-207361-06 and incorporated byreference herein).

4.4          Trust and Servicing Agreement, dated as of July 1, 2017, byand among J.P. Morgan Chase Commercial Mortgage Securities Corp., as Depositor,Wells Fargo Bank, National Association, as Servicer and as Special Servicer,Wells Fargo Bank, National Association, as Certificate Administrator andWilmington Trust, National Association, as Trustee (filed as Exhibit 4.6 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.5          Trust and Servicing Agreement, dated as of July 6, 2017,by and among Credit Suisse Commercial Mortgage Securities Corp., as Depositor,KeyBank National Association, as Servicer, AEGON USA Realty Advisors, LLC, asSpecial Servicer, Wells Fargo Bank, National Association, as CertificateAdministrator, Wells Fargo Bank, National Association, as Trustee and ParkBridge Lender Services LLC, as Operating Advisor (filed as Exhibit 4.3 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

4.6          Pooling and Servicing Agreement, dated as of August 1,2017, by and among UBS Commercial Mortgage Securitization Corp., as Depositor,Midland Loan Services, a Division of PNC Bank, National Association, as MasterServicer and as Special Servicer, Wells Fargo Bank, National Association, asCertificate Administrator and as Trustee, and Park Bridge Lender Services LLC,as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit4.7 to the registrant’s Current Report on Form 8-K filed on September 29, 2017under Commission File No. 333-207361-06 and incorporated by reference herein).

4.7          Pooling and Servicing Agreement, dated as of September 1,2017, by and among Wells Fargo Commercial Mortgage Securities, Inc., asDepositor, Wells Fargo Bank, National Association, as General Master Servicer,Rialto Capital Advisors, LLC, as General Special Servicer, National CooperativeBank, N.A., as NCB Master Servicer and as NCB Special Servicer, Wells FargoBank, National Association, as Certificate Administrator, Wilmington Trust,National Association, as Trustee, and Pentalpha Surveillance LLC, as OperatingAdvisor and as Asset Representations Reviewer (filed as Exhibit 4.2 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.8          Agreement Between Note Holders, dated as of September 29,2017, by and between Column Financial, Inc., as Initial Note A-1 Holder andColumn Financial, Inc., as Initial A-2 Holder (filed as Exhibit 4.8 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.9          Agreement Between Note Holders, dated as of September 5,2017, by and between Wells Fargo Bank, National Association, as Initial NoteA-1 Holder and Column Financial, Inc., as Initial Note A-2 Holder (filed asExhibit 4.9 to the registrant’s Current Report on Form 8-K filed on September29, 2017 under Commission File No. 333-207361-06 and incorporated by referenceherein).

4.10         Co-Lender Agreement, dated as of July 13, 2017, by andbetween Column Financial, Inc., as Initial Note A-1 Holder, Column FinancialInc., as Initial Note A-2 Holder, Column Financial, Inc., as Initial Note A-3-AHolder, Column Financial, Inc., as Initial Note A-3-B Holder and ColumnFinancial, Inc. as Initial Note B Holder (filed as Exhibit 4.10 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.11         Co-Lender Agreement, dated as of May 30, 2017, by andamong JPMorgan Chase Bank, National Association, Natixis Real Estate CapitalLLC, Societe Generale, Deutsche Bank, AG, New York Branch and Barclays Bank PLC(filed as Exhibit 4.11 to the registrant’s Current Report on Form 8-K filed onSeptember 29, 2017 under Commission File No. 333-207361-06 and incorporated byreference herein).

4.12         Agreement Between Note Holders, dated as of September 29,2017, by and between Column Financial, Inc., as Initial Note A-1 Holder andColumn Financial, Inc., as Initial Note A-2 Holder (filed as Exhibit 4.12 tothe registrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.13         Co-Lender Agreement, dated as of June 13, 2017, by andbetween Natixis Real Estate Capital LLC, as Initial Note A-A-1 Holder, asNatixis Real Estate Capital LLC, as Initial Note A-A-2 Holder, Natixis RealEstate Capital LLC, as Initial Note A-A-3 Holder, Natixis Real Estate CapitalLLC, as Initial Note A-B Holder, Natixis Real Estate Capital LLC, as InitialNote B-A Holder and Natixis Real Estate Capital LLC, as Initial Note B-B Holder(filed as Exhibit 4.13 to the registrant’s Current Report on Form 8-K filed onSeptember 29, 2017 under Commission File No. 333-207361-06 and incorporated byreference herein).

4.14         Co-Lender Agreement, dated as of March 29, 2017, by andbetween Natixis Real Estate Capital LLC, as Senior Noteholder and Natixis RealEstate Capital LLC, as Junior Noteholder (filed as Exhibit 4.14 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.15         Co-Lender Agreement, dated as of July 28, 2017, by andbetween Natixis Real Estate Capital LLC, as Initial Note A-1 Holder, NatixisReal Estate Capital LLC, as Initial Note A-2 Holder, Natixis Real EstateCapital LLC, as Initial Note A-3 Holder, Natixis Real Estate Capital LLC, asInitial Note B-1-A Holder, Natixis Real Estate Capital LLC, as Initial NoteB-1-B Holder and Natixis Real Estate Capital LLC, as Initial Note B-2 Holder(filed as Exhibit 4.15 to the registrant’s Current Report on Form 8-K filed onSeptember 29, 2017 under Commission File No. 333-207361-06 and incorporated byreference herein).

4.16         Co-Lender Agreement, dated as of September 29, 2017, betweenNatixis Real Estate Capital LLC, as Note A-1 Holder and Natixis Real EstateCapital LLC, as Note A-2 Holder (filed as Exhibit 4.16 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

4.17         Co-Lender Agreement, dated as of August 31, 2017, by and betweenNatixis Real Estate Capital LLC, as Initial Note A-1 Holder, Natixis RealEstate Capital LLC, as Initial Note A-2 Holder and Natixis Real Estate CapitalLLC, as Initial Junior Noteholder (filed as Exhibit 4.17 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

4.18         Co-Lender Agreement, dated as of June 29, 2017, by andbetween JPMorgan Chase Bank, National Association and Column Financial, Inc.(filed as Exhibit 4.18 to the registrant’s Current Report on Form 8-K filed onSeptember 29, 2017 under Commission File No. 333-207361-06 and incorporated byreference herein).

4.19         Co-Lender Agreement, dated as of June 29, 2017, betweenNatixis Real Estate Capital LLC, as Note A-1 Holder and Natixis Real EstateCapital LLC, as Note A-2 Holder (filed as Exhibit 4.19 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

4.20         Co-Lender Agreement, dated as of July 31, 2017, betweenBenefit Street Partners CRE Finance LLC, as Note A-1 Holder and Benefit StreetPartners CRE Finance LLC as Note A-2 Holder (filed as Exhibit 4.20 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

4.21         Co-Lender Agreement, dated as of June 16, 2017, betweenBenefit Street Partners CRE Finance LLC, as Note A-1 Holder, Benefit StreetPartners CRE Finance LLC, as Note A-2 Holder and Benefit Street Partners CREFinance LLC, as Note A-3 Holder (filed as Exhibit 4.21 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

4.22         Co-Lender and Future Funding Indemnification Agreement,dated as of August 17, 2017, between Natixis Real Estate Capital LLC, as NoteA-1 Holder, Natixis Real Estate Capital LLC, as Note A-2 Holder, Natixis RealEstate Capital LLC, as Note A-3 Holder, Natixis Real Estate Capital LLC, asNote A-4 Holder and Natixis Real Estate Capital LLC, as Future FundingIndemnitor (filed as Exhibit 4.22 to the registrant’s Current Report on Form8-K filed on September 29, 2017 under Commission File No. 333-207361-06 andincorporated by reference herein).

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

33           Reports on assessment of compliance with servicing criteria for asset-backedsecurities.

33.1        KeyBank National Association, as Master Servicer

33.2        Rialto Capital Advisors, LLC, as Special Servicer

33.3        Wells Fargo Bank, National Association, as Trusteeand Certificate Administrator

33.4        Wells Fargo Bank, National Association, asCustodian

33.5        Pentalpha Surveillance LLC, as Operating Advisor

33.6        Computershare Trust Company, National Association,as Servicing Function Participant for the Trustee and Certificate Administratoron and after November 1, 2021

33.7        Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021

33.8        KeyBank National Association, as Primary Servicerof the Park Center Phase I Mortgage Loan (see Exhibit 33.1)

33.9        Rialto Capital Advisors, LLC, as Special Servicerof the Park Center Phase I Mortgage Loan (see Exhibit 33.2)

33.10      Wells Fargo Bank, National Association, as Trustee of the Park Center Phase IMortgage Loan (Omitted. See Explanatory Notes.)

33.11      Wells Fargo Bank, National Association, as Custodianof the Park Center Phase I Mortgage Loan (see Exhibit 33.4)

33.12      Pentalpha Surveillance LLC, as Operating Advisor ofthe Park Center Phase I Mortgage Loan (see Exhibit 33.5)

33.13      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.14      KeyBank National Association, as Primary Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 33.1)

33.15      Rialto Capital Advisors, LLC, as Special Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 33.2)

33.16      Wells Fargo Bank, National Association, as Trustee of The Boulders Resort &Spa Mortgage Loan (Omitted. See Explanatory Notes.)

33.17      Wells Fargo Bank, National Association, asCustodian of The Boulders Resort & Spa Mortgage Loan (see Exhibit 33.4)

33.18      Pentalpha Surveillance LLC, as Operating Advisor ofThe Boulders Resort & Spa Mortgage Loan (see Exhibit 33.5)

33.19      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.20      KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 33.1)

33.21      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 33.2)

33.22      Wells Fargo Bank, National Association, as Trustee of the JW Marriott ChicagoMortgage Loan (Omitted. See Explanatory Notes.)

33.23      Wells Fargo Bank, National Association, asCustodian of the JW Marriott Chicago Mortgage Loan (see Exhibit 33.4)

33.24      Pentalpha Surveillance LLC, as Operating Advisor ofthe JW Marriott Chicago Mortgage Loan (see Exhibit 33.5)

33.25      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.26      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 33.1)

33.27      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 33.2)

33.28      Wells Fargo Bank, National Association, as Trustee of the Center 78 MortgageLoan (Omitted. See Explanatory Notes.)

33.29      Wells Fargo Bank, National Association, asCustodian of the Center 78 Mortgage Loan (see Exhibit 33.4)

33.30      Pentalpha Surveillance LLC, as Operating Advisor ofthe Center 78 Mortgage Loan (see Exhibit 33.5)

33.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.32      KeyBank National Association, as Primary Servicerof the 300 Montgomery Mortgage Loan (see Exhibit 33.1)

33.33      Rialto Capital Advisors, LLC, as Special Servicerof the 300 Montgomery Mortgage Loan (see Exhibit 33.2)

33.34      Wells Fargo Bank, National Association, as Trustee of the 300 MontgomeryMortgage Loan (Omitted. See Explanatory Notes.)

33.35      Wells Fargo Bank, National Association, as Custodianof the 300 Montgomery Mortgage Loan (see Exhibit 33.4)

33.36      Pentalpha Surveillance LLC, as Operating Advisor ofthe 300 Montgomery Mortgage Loan (see Exhibit 33.5)

33.37      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.38      KeyBank National Association, as Primary Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 33.1)

33.39      Rialto Capital Advisors, LLC, as Special Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 33.2)

33.40      Wells Fargo Bank, National Association, as Trustee of the Acropolis GardenMortgage Loan (Omitted. See Explanatory Notes.)

33.41      Wells Fargo Bank, National Association, asCustodian of the Acropolis Garden Mortgage Loan (see Exhibit 33.4)

33.42      Pentalpha Surveillance LLC, as Operating Advisor ofthe Acropolis Garden Mortgage Loan (see Exhibit 33.5)

33.43      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.44      KeyBank National Association, as Primary Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 33.1)

33.45      Rialto Capital Advisors, LLC, as Special Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 33.2)

33.46      Wells Fargo Bank, National Association, as Trustee of the Carolina HotelPortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.47      Wells Fargo Bank, National Association, asCustodian of the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 33.4)

33.48      Pentalpha Surveillance LLC, as Operating Advisor ofthe Carolina Hotel Portfolio Mortgage Loan (see Exhibit 33.5)

33.49      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.50      KeyBank National Association, as Primary Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 33.1)

33.51      Rialto Capital Advisors, LLC, as Special Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 33.2)

33.52      Wells Fargo Bank, National Association, as Trustee of the Apex Fort WashingtonMortgage Loan (Omitted. See Explanatory Notes.)

33.53      Wells Fargo Bank, National Association, asCustodian of the Apex Fort Washington Mortgage Loan (see Exhibit 33.4)

33.54      Pentalpha Surveillance LLC, as Operating Advisor ofthe Apex Fort Washington Mortgage Loan (see Exhibit 33.5)

33.55      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.56      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan

33.57      AEGON USA Realty Advisors, LLC, as Special Servicer of the 245 Park AvenueMortgage Loan prior to April 13, 2021 (Omitted. See Explanatory Notes.)

33.58      Situs Holdings, LLC, as Special Servicer of the245 Park Avenue Mortgage Loan on and after April 13, 2021

33.59      Wilmington Trust, National Association, as Trustee of the 245 Park AvenueMortgage Loan (Omitted. See Explanatory Notes.)

33.60      Wells Fargo Bank, National Association, asCustodian of the 245 Park Avenue Mortgage Loan (see Exhibit 33.4)

33.61      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the 245 Park Avenue Mortgage Loan

33.62      CoreLogic Solutions, LLC, as Servicing Function Participantof the 245 Park Avenue Mortgage Loan

33.63      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.64      Wells Fargo Bank, National Association, as PrimaryServicer of the 85 Broad Street Mortgage Loan (see Exhibit 33.56)

33.65      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the 85 Broad Street Mortgage Loan

33.66      Wilmington Trust, National Association, as Trustee of the 85 Broad StreetMortgage Loan (Omitted. See Explanatory Notes.)

33.67      Wells Fargo Bank, National Association, asCustodian of the 85 Broad Street Mortgage Loan (see Exhibit 33.4)

33.68      Park Bridge Lender Services LLC, as OperatingAdvisor of the 85 Broad Street Mortgage Loan

33.69      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 85 Broad Street Mortgage Loan (see Exhibit 33.62)

33.70      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.71      Wells Fargo Bank, National Association, as PrimaryServicer of the West Town Mall Mortgage Loan (see Exhibit 33.56)

33.72      Wells Fargo Bank, National Association, as SpecialServicer of the West Town Mall Mortgage Loan (see Exhibit 33.56)

33.73      Wilmington Trust, National Association, as Trustee of the West Town MallMortgage Loan (Omitted. See Explanatory Notes.)

33.74      Wells Fargo Bank, National Association, asCustodian of the West Town Mall Mortgage Loan (see Exhibit 33.4)

33.75      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the West Town Mall Mortgage Loan (see Exhibit 33.62)

33.76      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.77      KeyBank National Association, as Primary Servicerof the Two Independence Square Mortgage Loan (see Exhibit 33.1)

33.78      AEGON USA Realty Advisors, LLC, as Special Servicer of the Two IndependenceSquare Mortgage Loan prior to March 11, 2021  (Omitted. See ExplanatoryNotes.)

33.79      Situs Holdings, LLC, as Special Servicer of theTwo Independence Square Mortgage Loan on and after March 11, 2021 (see Exhibit33.58)

33.80      Wells Fargo Bank, National Association, as Trustee of the Two IndependenceSquare Mortgage Loan (Omitted. See Explanatory Notes.)

33.81      Wells Fargo Bank, National Association, asCustodian of the Two Independence Square Mortgage Loan (see Exhibit 33.4)

33.82      Park Bridge Lender Services LLC, as OperatingAdvisor of the Two Independence Square Mortgage Loan (see Exhibit 33.68)

33.83      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.84      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 33.65)

33.85      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 33.65)

33.86      Wells Fargo Bank, National Association, as Trustee of the IC Leased Fee HotelPortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.87      Wells Fargo Bank, National Association, asCustodian of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 33.4)

33.88      Park Bridge Lender Services LLC, as OperatingAdvisor of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 33.68)

33.89      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

33.90      Wells Fargo Bank, National Association, as PrimaryServicer of the Westin Building Exchange Mortgage Loan (see Exhibit 33.56)

33.91      Rialto Capital Advisors, LLC, as Special Servicerof the Westin Building Exchange Mortgage Loan (see Exhibit 33.2)

33.92      Wilmington Trust, National Association, as Trustee of the Westin BuildingExchange Mortgage Loan (Omitted. See Explanatory Notes.)

33.93      Wells Fargo Bank, National Association, asCustodian of the Westin Building Exchange Mortgage Loan (see Exhibit 33.4)

33.94      Pentalpha Surveillance LLC, as Operating Advisor ofthe Westin Building Exchange Mortgage Loan (see Exhibit 33.5)

33.95      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Westin Building Exchange Mortgage Loan (see Exhibit 33.62)

33.96      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.7)

34           Attestationreports on assessment of compliance with servicing criteria for asset-backedsecurities.

34.1        KeyBank National Association, as Master Servicer

34.2        Rialto Capital Advisors, LLC, as Special Servicer

34.3        Wells Fargo Bank, National Association, as Trusteeand Certificate Administrator

34.4        Wells Fargo Bank, National Association, asCustodian

34.5        Pentalpha Surveillance LLC, as Operating Advisor

34.6        Computershare Trust Company, National Association,as Servicing Function Participant for the Trustee and Certificate Administratoron and after November 1, 2021

34.7        Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021

34.8        KeyBank National Association, as Primary Servicerof the Park Center Phase I Mortgage Loan (see Exhibit 34.1)

34.9        Rialto Capital Advisors, LLC, as Special Servicer ofthe Park Center Phase I Mortgage Loan (see Exhibit 34.2)

34.10      Wells Fargo Bank, National Association, as Trustee of the Park Center Phase IMortgage Loan (Omitted. See Explanatory Notes.)

34.11      Wells Fargo Bank, National Association, asCustodian of the Park Center Phase I Mortgage Loan (see Exhibit 34.4)

34.12      Pentalpha Surveillance LLC, as Operating Advisor ofthe Park Center Phase I Mortgage Loan (see Exhibit 34.5)

34.13      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.14      KeyBank National Association, as Primary Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 34.1)

34.15      Rialto Capital Advisors, LLC, as Special Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 34.2)

34.16      Wells Fargo Bank, National Association, as Trustee of The Boulders Resort &Spa Mortgage Loan (Omitted. See Explanatory Notes.)

34.17      Wells Fargo Bank, National Association, asCustodian of The Boulders Resort & Spa Mortgage Loan (see Exhibit 34.4)

34.18      Pentalpha Surveillance LLC, as Operating Advisor ofThe Boulders Resort & Spa Mortgage Loan (see Exhibit 34.5)

34.19      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.20      KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 34.1)

34.21      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 34.2)

34.22      Wells Fargo Bank, National Association, as Trustee of the JW Marriott ChicagoMortgage Loan (Omitted. See Explanatory Notes.)

34.23      Wells Fargo Bank, National Association, asCustodian of the JW Marriott Chicago Mortgage Loan (see Exhibit 34.4)

34.24      Pentalpha Surveillance LLC, as Operating Advisor ofthe JW Marriott Chicago Mortgage Loan (see Exhibit 34.5)

34.25      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.26      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 34.1)

34.27      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 34.2)

34.28      Wells Fargo Bank, National Association, as Trustee of the Center 78 MortgageLoan (Omitted. See Explanatory Notes.)

34.29      Wells Fargo Bank, National Association, asCustodian of the Center 78 Mortgage Loan (see Exhibit 34.4)

34.30      Pentalpha Surveillance LLC, as Operating Advisor ofthe Center 78 Mortgage Loan (see Exhibit 34.5)

34.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.32      KeyBank National Association, as Primary Servicerof the 300 Montgomery Mortgage Loan (see Exhibit 34.1)

34.33      Rialto Capital Advisors, LLC, as Special Servicer ofthe 300 Montgomery Mortgage Loan (see Exhibit 34.2)

34.34      Wells Fargo Bank, National Association, as Trustee of the 300 MontgomeryMortgage Loan (Omitted. See Explanatory Notes.)

34.35      Wells Fargo Bank, National Association, asCustodian of the 300 Montgomery Mortgage Loan (see Exhibit 34.4)

34.36      Pentalpha Surveillance LLC, as Operating Advisor ofthe 300 Montgomery Mortgage Loan (see Exhibit 34.5)

34.37      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.38      KeyBank National Association, as Primary Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 34.1)

34.39      Rialto Capital Advisors, LLC, as Special Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 34.2)

34.40      Wells Fargo Bank, National Association, as Trustee of the Acropolis GardenMortgage Loan (Omitted. See Explanatory Notes.)

34.41      Wells Fargo Bank, National Association, asCustodian of the Acropolis Garden Mortgage Loan (see Exhibit 34.4)

34.42      Pentalpha Surveillance LLC, as Operating Advisor ofthe Acropolis Garden Mortgage Loan (see Exhibit 34.5)

34.43      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.44      KeyBank National Association, as Primary Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 34.1)

34.45      Rialto Capital Advisors, LLC, as Special Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 34.2)

34.46      Wells Fargo Bank, National Association, as Trustee of the Carolina HotelPortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.47      Wells Fargo Bank, National Association, asCustodian of the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 34.4)

34.48      Pentalpha Surveillance LLC, as Operating Advisor ofthe Carolina Hotel Portfolio Mortgage Loan (see Exhibit 34.5)

34.49      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.50      KeyBank National Association, as Primary Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 34.1)

34.51      Rialto Capital Advisors, LLC, as Special Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 34.2)

34.52      Wells Fargo Bank, National Association, as Trustee of the Apex Fort WashingtonMortgage Loan (Omitted. See Explanatory Notes.)

34.53      Wells Fargo Bank, National Association, asCustodian of the Apex Fort Washington Mortgage Loan (see Exhibit 34.4)

34.54      Pentalpha Surveillance LLC, as Operating Advisor ofthe Apex Fort Washington Mortgage Loan (see Exhibit 34.5)

34.55      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.56      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan

34.57      AEGON USA Realty Advisors, LLC, as Special Servicer of the 245 Park AvenueMortgage Loan prior to April 13, 2021 (Omitted. See Explanatory Notes.)

34.58      Situs Holdings, LLC, as Special Servicer of the245 Park Avenue Mortgage Loan on and after April 13, 2021

34.59      Wilmington Trust, National Association, as Trustee of the 245 Park AvenueMortgage Loan (Omitted. See Explanatory Notes.)

34.60      Wells Fargo Bank, National Association, asCustodian of the 245 Park Avenue Mortgage Loan (see Exhibit 34.4)

34.61      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the 245 Park Avenue Mortgage Loan

34.62      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 245 Park Avenue Mortgage Loan

34.63      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.64      Wells Fargo Bank, National Association, as PrimaryServicer of the 85 Broad Street Mortgage Loan (see Exhibit 34.56)

34.65      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the 85 Broad Street Mortgage Loan

34.66      Wilmington Trust, National Association, as Trustee of the 85 Broad StreetMortgage Loan (Omitted. See Explanatory Notes.)

34.67      Wells Fargo Bank, National Association, asCustodian of the 85 Broad Street Mortgage Loan (see Exhibit 34.4)

34.68      Park Bridge Lender Services LLC, as OperatingAdvisor of the 85 Broad Street Mortgage Loan

34.69      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 85 Broad Street Mortgage Loan (see Exhibit 34.62)

34.70      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.71      Wells Fargo Bank, National Association, as PrimaryServicer of the West Town Mall Mortgage Loan (see Exhibit 34.56)

34.72      Wells Fargo Bank, National Association, as SpecialServicer of the West Town Mall Mortgage Loan (see Exhibit 34.56)

34.73      Wilmington Trust, National Association, as Trustee of the West Town MallMortgage Loan (Omitted. See Explanatory Notes.)

34.74      Wells Fargo Bank, National Association, asCustodian of the West Town Mall Mortgage Loan (see Exhibit 34.4)

34.75      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the West Town Mall Mortgage Loan (see Exhibit 34.62)

34.76      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.77      KeyBank National Association, as Primary Servicerof the Two Independence Square Mortgage Loan (see Exhibit 34.1)

34.78      AEGON USA Realty Advisors, LLC, as Special Servicer of the Two IndependenceSquare Mortgage Loan prior to March 11, 2021 (Omitted. See Explanatory Notes.)

34.79      Situs Holdings, LLC, as Special Servicer of theTwo Independence Square Mortgage Loan on and after March 11, 2021 (see Exhibit34.58)

34.80      Wells Fargo Bank, National Association, as Trustee of the Two IndependenceSquare Mortgage Loan (Omitted. See Explanatory Notes.)

34.81      Wells Fargo Bank, National Association, asCustodian of the Two Independence Square Mortgage Loan (see Exhibit 34.4)

34.82      Park Bridge Lender Services LLC, as OperatingAdvisor of the Two Independence Square Mortgage Loan (see Exhibit 34.68)

34.83      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.84      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 34.65)

34.85      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 34.65)

34.86      Wells Fargo Bank, National Association, as Trustee of the IC Leased Fee HotelPortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.87      Wells Fargo Bank, National Association, asCustodian of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 34.4)

34.88      Park Bridge Lender Services LLC, as OperatingAdvisor of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 34.68)

34.89      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

34.90      Wells Fargo Bank, National Association, as PrimaryServicer of the Westin Building Exchange Mortgage Loan (see Exhibit 34.56)

34.91      Rialto Capital Advisors, LLC, as Special Servicerof the Westin Building Exchange Mortgage Loan (see Exhibit 34.2)

34.92      Wilmington Trust, National Association, as Trustee of the Westin BuildingExchange Mortgage Loan (Omitted. See Explanatory Notes.)

34.93      Wells Fargo Bank, National Association, asCustodian of the Westin Building Exchange Mortgage Loan (see Exhibit 34.4)

34.94      Pentalpha Surveillance LLC, as Operating Advisor ofthe Westin Building Exchange Mortgage Loan (see Exhibit 34.5)

34.95      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Westin Building Exchange Mortgage Loan (see Exhibit 34.62)

34.96      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.7)

35           Servicer compliance statements.

35.1        KeyBank National Association, as Master Servicer

35.2        Rialto Capital Advisors, LLC, as Special Servicer

35.3        Wells Fargo Bank, National Association, asCertificate Administrator

35.4        Computershare Trust Company, National Association,as Servicing Function Participant for the Certificate Administrator on andafter November 1, 2021

35.5        KeyBank National Association, as Primary Servicerof the Park Center Phase I Mortgage Loan (see Exhibit 35.1)

35.6        Rialto Capital Advisors, LLC, as Special Servicerof the Park Center Phase I Mortgage Loan (see Exhibit 35.2)

35.7        KeyBank National Association, as Primary Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 35.1)

35.8        Rialto Capital Advisors, LLC, as Special Servicerof The Boulders Resort & Spa Mortgage Loan (see Exhibit 35.2)

35.9        KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 35.1)

35.10      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 35.2)

35.11      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 35.1)

35.12      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 35.2)

35.13      KeyBank National Association, as Primary Servicerof the 300 Montgomery Mortgage Loan (see Exhibit 35.1)

35.14      Rialto Capital Advisors, LLC, as Special Servicerof the 300 Montgomery Mortgage Loan (see Exhibit 35.2)

35.15      KeyBank National Association, as Primary Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 35.1)

35.16      Rialto Capital Advisors, LLC, as Special Servicerof the Acropolis Garden Mortgage Loan (see Exhibit 35.2)

35.17      KeyBank National Association, as Primary Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 35.1)

35.18      Rialto Capital Advisors, LLC, as Special Servicerof the Carolina Hotel Portfolio Mortgage Loan (see Exhibit 35.2)

35.19      KeyBank National Association, as Primary Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 35.1)

35.20      Rialto Capital Advisors, LLC, as Special Servicerof the Apex Fort Washington Mortgage Loan (see Exhibit 35.2)

35.21      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan

35.22      AEGON USA Realty Advisors, LLC, as Special Servicer of the 245 Park AvenueMortgage Loan prior to April 13, 2021 (Omitted. See Explanatory Notes.)

35.23      Situs Holdings, LLC, as Special Servicer of the 245 Park Avenue Mortgage Loanon and after April 13, 2021 (Omitted. See Explanatory Notes.)

35.24      Wells Fargo Bank, National Association, as PrimaryServicer of the 85 Broad Street Mortgage Loan (see Exhibit 35.21)

35.25      Midland Loan Services, a Division of PNC Bank, National Association, as SpecialServicer of the 85 Broad Street Mortgage Loan (Omitted. See Explanatory Notes.)

35.26      Wells Fargo Bank, National Association, as PrimaryServicer of the West Town Mall Mortgage Loan (see Exhibit 35.21)

35.27      Wells Fargo Bank, National Association, as SpecialServicer of the West Town Mall Mortgage Loan (see Exhibit 35.21)

35.28      KeyBank National Association, as Primary Servicerof the Two Independence Square Mortgage Loan (see Exhibit 35.1)

35.29      AEGON USA Realty Advisors, LLC, as Special Servicer of the Two IndependenceSquare Mortgage Loan prior to March 11, 2021 (Omitted. See Explanatory Notes.)

35.30      Situs Holdings, LLC, as Special Servicer of the Two Independence SquareMortgage Loan on and after March 11, 2021 (Omitted. See Explanatory Notes.)

35.31      Midland Loan Services, a Division of PNC Bank, National Association, as PrimaryServicer of the IC Leased Fee Hotel Portfolio Mortgage Loan (Omitted. SeeExplanatory Notes.)

35.32      Midland Loan Services, a Division of PNC Bank, National Association, as SpecialServicer of the IC Leased Fee Hotel Portfolio Mortgage Loan (Omitted. SeeExplanatory Notes.)

35.33      Wells Fargo Bank, National Association, as PrimaryServicer of the Westin Building Exchange Mortgage Loan (see Exhibit 35.21)

35.34      Rialto Capital Advisors, LLC, as Special Servicerof the Westin Building Exchange Mortgage Loan (see Exhibit 35.2)

99.1         Mortgage Loan Purchase Agreement, dated as of September19, 2017, between Credit Suisse Commercial Mortgage Securities Corp. and ColumnFinancial, Inc. (filed as Exhibit 99.1 to the registrant’s Current Report onForm 8-K filed on September 29, 2017 under Commission File No. 333-207361-06and incorporated by reference herein).

99.2         Mortgage Loan Purchase Agreement, dated as of September19, 2017, between Credit Suisse Commercial Mortgage Securities Corp. andNatixis Real Estate Capital LLC (filed as Exhibit 99.2 to the registrant’sCurrent Report on Form 8-K filed on September 29, 2017 under Commission FileNo. 333-207361-06 and incorporated by reference herein).

99.3         Mortgage Loan Purchase Agreement, dated as of September19, 2017, between Credit Suisse Commercial Mortgage Securities Corp. andBenefit Street Partners CRE Finance LLC (filed as Exhibit 99.3 to theregistrant’s Current Report on Form 8-K filed on September 29, 2017 underCommission File No. 333-207361-06 and incorporated by reference herein).

(b)   The exhibits required to be filed by theRegistrant pursuant to Item 601 of Regulation S-K are listed above.

(c)    Not Applicable.

 

**SIGNATURES**

Pursuant to the requirements of Section 13 or 15(d) of theSecurities Exchange Act of 1934, the registrant has duly caused this report tobe signed on its behalf by the undersigned, thereunto duly authorized.

Credit Suisse Commercial MortgageSecurities Corp.(Depositor)

/s/ JuliaPowell

JuliaPowell, President and Chief Executive Officer

(senior officer in charge ofsecuritization of the depositor)

Date: March 9, 2022