**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: 333-207340-03**

**Central Index Key Number of the issuing entity:0001713226**

**UBS Commercial Mortgage Trust2017-C3**

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

** **

**Central Index Key Number of the depositor: 0001532799**

**UBS Commercial MortgageSecuritization Corp.**

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

** **

**Central Index Key Number of the sponsor: 0001685185**

**UBS AG, acting through its branchlocated at 1285 Avenue of the Americas, New York, New York**

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

** **

**Central Index Key Number of the sponsor: 0001089877**

**KeyBank National Association**

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

** **

**Central Index Key Number of the sponsor: 0001238163**

**Société Générale, New York Branch**

**(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: 0001592182**

**LMF Commercial, LLC**

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

**(formerly known as RialtoMortgage Finance, LLC)**

** **

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

**the issuing entity)** | **38-4041060**

**38-4041061**

**(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) 713-2000**

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 smaller reportingcompany, 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 ifa smaller reporting company)                          Smaller reportingcompany                    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 shellcompany (as defined in Rule 12b-2 of the Act).  o Yes ⌧ 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.

 

** **

**EXPLANATORY NOTES**

The Great Valley Commerce Center Mortgage Loanand the IC Leased Fee Hotel Portfolio Mortgage Loan, which constitutedapproximately 3.9% and 3.8%, respectively, of the asset pool of the issuingentity as of its cut-off date, are each an asset of the issuing entity and areeach part of a loan combination that includes (a) with respect to the GreatValley Commerce Center Mortgage Loan, one other *pari passu* loan, whichis not an asset of the issuing entity and (b) with respect to the IC Leased FeeHotel Portfolio Mortgage Loan, three other *pari passu* loans, which arenot assets of the issuing entity. These loan combinations, including the GreatValley Commerce Center Mortgage Loan and the IC Leased Fee Hotel PortfolioMortgage Loan, are being serviced and administered pursuant to the Pooling andServicing Agreement, which is incorporated by reference as Exhibit 4.1 to thisAnnual 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 5.4% 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, nineteen 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 Trust 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 Trust 2017-245P Transaction, whichis incorporated 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 Del Amo Fashion Center Mortgage Loan, whichconstituted approximately 7.1% of the asset pool of the issuing entity as ofits cut-off date.  The Del Amo Fashion Center Mortgage Loan is an asset ofthe issuing entity and is part of a loan combination that includes the Del AmoFashion Center Mortgage Loan, thirty-two other *pari passu* loans andtwelve subordinate companion loans, which are not assets of the issuing entity.A *pari passu* portion of the loan combination was securitized in the DelAmo Fashion Center Trust 2017-AMO transaction (the “DAFC 2017-AMOTransaction”). This loan combination, including the Del Amo Fashion CenterMortgage Loan, is being serviced and administered pursuant to the trust andservicing agreement for the DAFC 2017-AMO 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 the ExhibitIndex) with respect to the TZA Multifamily Portfolio I Mortgage Loan and thePark West Village Mortgage Loan, which constituted approximately 7.1% and 4.2%,respectively, of the asset pool of the issuing entity as of its cut-offdate.  The TZA Multifamily Portfolio I Mortgage Loan and the Park WestVillage Mortgage Loan are each an asset of the issuing entity and are each partof a loan combination that includes (a) with respect to the TZA MultifamilyPortfolio I Mortgage Loan, two other *pari passu* loans, which are notassets of the issuing entity or (b) with respect to the Park West VillageMortgage Loan, five other *pari passu* loans and three subordinatecompanion loans, which are not assets of the issuing entity. A *pari passu*portion of each loan combination was securitized in the UBS Commercial MortgageTrust 2017-C2 transaction, Commission File Number 333-207340-02 (the “UBS2017-C2 Transaction”). These loan combinations, including the TZAMultifamily Portfolio I Mortgage Loan and the Park West Village Mortgage Loan,are being serviced and administered pursuant to the pooling and servicingagreement for the UBS 2017-C2 Transaction, which is incorporated by referenceas Exhibit 4.4 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibitsprovided by certain parties (in their capacities indicated on the ExhibitIndex) with respect to the JW Marriott Chicago Mortgage Loan and the Center 78Mortgage Loan, which constituted approximately 4.0% and 4.0%, respectively, ofthe asset pool of the issuing entity as of its cut-off date.  The JWMarriott Chicago Mortgage Loan and Center 78 Mortgage Loan are each an asset ofthe issuing entity and are each part of a loan combination that includes (a)with respect to the JW Marriott Chicago Mortgage Loan, two other *pari passu*loans and three subordinate companion loans, which are not assets of theissuing entity or (b) with respect to the Center 78 Mortgage Loan, one other *paripassu* loan and one subordinate companion loan, which are not assets of theissuing entity.  These loan combinations, including the JW MarriottChicago Mortgage Loan and the Center 78 Mortgage Loan, were serviced under thePooling and Servicing Agreement for the issuing entity prior to the closing ofthe securitization of a *pari passu* portion of the JW MarriottChicago  loan combination and the Center 78  loan combination in theCSAIL 2017-CX9 Commercial Mortgage Trust transaction, Commission File Number333-207361-06 (the “CSAIL 2017-CX9 Transaction”).  After theclosing of the CSAIL 2017-CX9 Transaction on September 29, 2017, these loancombinations, including the JW Marriott Chicago Mortgage Loan and the Center 78Mortgage Loan were, and will continue to be, serviced and administered pursuantto the pooling and servicing agreement with respect to the CSAIL 2017-CX9Transaction, which is incorporated by reference as Exhibit 4.5 to this AnnualReport on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to The District Mortgage Loan, which constitutedapproximately 3.5% of the asset pool of the issuing entity as of its cut-offdate.  The District Mortgage Loan is an asset of the issuing entity and ispart of a loan combination that includes The District Mortgage Loan and fourother *pari passu* loans, which are not assets of the issuingentity.  This loan combination, including The District Mortgage Loan, wasserviced under the Pooling and Servicing Agreement for the issuing entity priorto the closing of the securitization of a *pari passu* portion of TheDistrict  loan combination in the UBS Commercial Mortgage Trust 2017-C4transaction, Commission File Number 333-207340-04 (the “UBS 2017-C4Transaction”).  After the closing of the UBS 2017-C4 Transaction onOctober 18, 2017, this loan combination, including The District Mortgage Loanwas, and will continue to be, serviced and administered pursuant to the poolingand servicing agreement with respect to the UBS 2017-C4 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 American Cancer Society Center Mortgage Loanand the OKC Outlets Mortgage Loan, which constituted approximately 6.1% and5.2%, respectively, of the asset pool of the issuing entity as of its cut-offdate.  The American Cancer Society Center Mortgage Loan and OKC OutletsMortgage Loan are each an asset of the issuing entity and are each part of aloan combination that includes (a) with respect to the American Cancer SocietyCenter Mortgage Loan, two other *pari passu* loans, which are not assetsof the issuing entity or (b) with respect to the OKC Outlets Mortgage Loan, oneother *pari passu* loan, which is not an asset of the issuingentity.  These loan combinations, including the American Cancer SocietyCenter Mortgage Loan and the OKC Outlets Mortgage Loan, were serviced under thePooling and Servicing Agreement for the issuing entity prior to the closing ofthe securitization of a *pari passu* portion of the American CancerSociety Center  loan combination and the OKC Outlets  loancombination in the Morgan Stanley Bank of America Merrill Lynch Trust 2017 C34 transaction,Commission File Number 333-206847-07 (the “MSBAM 2017-C34 Transaction”). After the closing of the MSBAM 2017-C34 Transaction on October 19, 2017, theseloan combinations, including the American Cancer Society Center Mortgage Loanand the OKC Outlets Mortgage Loan were, and will continue to be, serviced andadministered pursuant to the pooling and servicing agreement with respect tothe MSBAM 2017-C34 Transaction, which is incorporated by reference as Exhibit4.7 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.

Midland Loan Services, a Divisionof PNC Bank, National Association is the master servicer and special servicerof the mortgage loans serviced under the Pooling and Servicing Agreement andthe primary servicer and special servicer of the TZA Multifamily Portfolio IMortgage Loan and the Park West Village Mortgage Loan. As a result, MidlandLoan Services, a Division of PNC Bank, 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 Midland Loan Services, aDivision of PNC Bank, National Association in the capacities described aboveare listed in the Exhibit Index.

Wells Fargo Bank, NationalAssociation is the certificate administrator of the mortgage loans servicedunder the Pooling and Servicing Agreement and the primary servicer of the 245Park Avenue Mortgage Loan and The District Mortgage Loan. As a result, WellsFargo Bank, National Association 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 Wells Fargo Bank, National Association inthe capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association is the custodian ofthe mortgage loans serviced under the Pooling and Servicing Agreement, the DelAmo Fashion Center Mortgage Loan, the TZA Multifamily Portfolio I MortgageLoan, the American Cancer Society Center Mortgage Loan, the 245 Park AvenueMortgage Loan, the OKC Outlets Mortgage Loan, the Park West Village MortgageLoan, the Center 78 Mortgage Loan, the JW Marriott Chicago Mortgage Loan andThe District Mortgage Loan.  As a result, Wells Fargo Bank, NationalAssociation is a servicing function participant in the capacities described above,because it is servicing mortgage loans that constituted 5% or more of theassets of the issuing entity as of its cut-off date. The assessments ofcompliance with applicable servicing criteria and accountants’ attestationreports delivered by Wells Fargo Bank, National Association in the capacitiesdescribed above are listed in the Exhibit Index.

Park Bridge Lender Services LLC is the operating advisor ofthe mortgage loans serviced under the Pooling and Servicing Agreement, the TZAMultifamily Portfolio I Mortgage Loan, the Del Amo Fashion Center MortgageLoan, the American Cancer Society Center Mortgage Loan, the OKC OutletsMortgage Loan and the Park West Village 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.

KeyBank National Association isthe primary servicer of the Del Amo Fashion Center Mortgage Loan, the AmericanCancer Society Center Mortgage Loan, the OKC Outlets Mortgage Loan, the Center78 Mortgage Loan and the JW Marriott Chicago Mortgage Loan. As a result,KeyBank National Association is a “servicer” as defined in Item 1108(a)(2)(iii)of Regulation AB, in the capacities described above, because it is servicingmortgage loans that constituted 10% or more of the assets of the issuing entityas of its cut-off date. The assessments of compliance with applicable servicingcriteria, accountants’ attestation reports and servicer compliance statementsdelivered by KeyBank National Association in the capacities described above arelisted in the Exhibit Index.

Rialto Capital Advisors, LLC isthe special servicer of the Center 78 Mortgage Loan, the JW Marriott ChicagoMortgage Loan and The District Mortgage Loan. As a result, Rialto CapitalAdvisors, LLC 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 Rialto Capital Advisors, LLC in the capacities described above are listed inthe Exhibit Index.

Pentalpha Surveillance LLC is the operating advisor of theCenter 78 Mortgage Loan, the JW Marriott Chicago Mortgage Loan and The DistrictMortgage Loan.  As a result, Pentalpha Surveillance LLC 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 PentalphaSurveillance LLC in the capacities described above are listed in the ExhibitIndex.

LNR Partners, LLC is the specialservicer of the American Cancer Society Center Mortgage Loan and the OKCOutlets Mortgage Loan. As a result, LNR Partners, LLC 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 LNR Partners, LLC in thecapacities described above are listed in the Exhibit Index.

AEGON USA Realty Advisors, LLC isthe special servicer of the 245 Park Avenue Mortgage Loan, which constitutedapproximately 5.4% of the asset pool of the issuing entity as of its cut-offdate. 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 245 Park Avenue Mortgage Loan from January 1, 2021 toApril 12, 2021. As a result, it falls below the *de minimis*requirementsin Item 1122 of Regulation AB and no such assessment or attestation isrequired.

Situs Holdings, LLC is the specialservicer of the 245 Park Avenue Mortgage Loan on and after April 13, 2021 andthe special servicer of the Del Amo Fashion Center Mortgage Loan.  As aresult, Situs Holdings, LLC is a “servicer” as defined in Item 1108(a)(2)(iii)of Regulation AB, in the capacities described above, because it is servicingmortgage loans that constituted 10% or more of the assets of the issuing entityas of its cut-off date. The assessments of compliance with applicable servicingcriteria, accountants’ attestation reports and servicer compliance statementsdelivered by Situs Holdings, LLC in the capacities described above are listedin the Exhibit Index.

Wells Fargo Bank, NationalAssociation acts as trustee of the Great Valley Commerce Center Mortgage Loan,the IC Leased Fee Hotel Portfolio Mortgage Loan, the Park West Village MortgageLoan, the TZA Multifamily Portfolio I Mortgage Loan, the Center 78 MortgageLoan and the JW Marriott Chicago Mortgage Loan.  Pursuant to the Poolingand Servicing Agreement, the pooling and servicing agreement for the UBS2017-C2 Transaction and the pooling and servicing agreement for the CSAIL2017-CX9 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 Great Valley Commerce Center Mortgage Loan, the IC Leased Fee HotelPortfolio Mortgage Loan, the Park West Village Mortgage Loan, the TZAMultifamily Portfolio I Mortgage Loan, the Center 78 Mortgage Loan and the JWMarriott Chicago Mortgage Loan have delivered one or more assessments ofcompliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

Wilmington Trust, NationalAssociation acts as trustee of the 245 Park Avenue Mortgage Loan, the Del AmoFashion Center Mortgage Loan, The District Mortgage Loan, the OKC OutletsMortgage Loan and the American Cancer Society Center Mortgage Loan. Pursuant to the trust and servicing agreement for the 245 Park Avenue Trust2017-245P Transaction, the trust and servicing agreement for the DAFC 2017-AMOTransaction, the pooling and servicing agreement for the UBS 2017-C4Transaction and the pooling and servicing agreement for the MSBAM 2017-C34Transaction, the trustee is required to provide an assessment of compliancewith applicable servicing criteria solely with respect to Item 1122(d)(2)(iii)of Regulation AB (regarding advances of funds or guarantees regardingcollections, cash flows or distributions, and any interest or other feescharged for such advances, are made, reviewed and approved as specified in thetransaction agreements). However, during the reporting period, the trustee didnot perform any servicing function with respect to the servicing criteria specifiedin Item 1122(d)(2)(iii) of Regulation AB.  The master servicer or thespecial servicer, to the extent required, performed the servicing functionidentified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each suchparty included Item 1122(d)(2)(iii) of Regulation AB in the assessment ofcompliance with applicable servicing criteria and accountant’s attestationreport for the subject transaction.  As a result, this Annual Report onForm 10-K does not include an assessment of compliance with applicableservicing criteria of the trustee. One or more other servicers of the 245 ParkAvenue Mortgage Loan, the Del Amo Fashion Center Mortgage Loan, The DistrictMortgage Loan, the OKC Outlets Mortgage Loan and the American Cancer SocietyCenter Mortgage Loan have delivered one or more assessments of compliance withrespect to Item 1122(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 Mortgage Loanand The District Mortgage Loan to remit tax payments received from the escrowaccounts of borrowers to local taxing authorities, to report tax amounts due,to verify tax parcel information, and to verify non-escrow tax payments. Theseservicing functions are included within the servicing criteria set forth inItems 1122(d)(4)(xi) and 1122(d)(4)(xii) of Regulation AB.  Therefore,under the principles-based definition of “servicer” set forth in Item 1101(j)of Regulation AB that looks to the functions that an entity performs, thisvendor is a “servicer” for the purposes of Item 1122 of Regulation 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”).  CTCNAwas engaged by Wells Fargo Bank, National Association (“Wells Fargo”),in its capacity 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)).

The assessmentsof compliance with applicable servicing criteria, accountants’ attestationreports and servicer compliance statements of the certificate administrator ofthe 245 Park Avenue Mortgage Loan, the Del Amo Fashion Center Mortgage Loan,the Park West Village Mortgage Loan, the TZA Multifamily Portfolio I MortgageLoan, the Center 78 Mortgage Loan, the JW Marriott Chicago Mortgage Loan, TheDistrict Mortgage Loan, the OKC Outlets Mortgage Loan and the American CancerSociety Center Mortgage Loan are omitted from this Annual Report on Form 10-Kas the certificate administrator pursuant to the related pooling and servicingagreement or trust and servicing agreement does not perform any activities thataddress servicing criteria with respect to the issuing entity and because theyare each not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through(iii) of Regulation AB.

With respect to the *pari passu*loan combination that includes the 245 Park Avenue Mortgage Loan, (i) thereport on assessment of compliance with servicing criteria and attestationreport on assessment of compliance with servicing criteria of AEGON USA RealtyAdvisors, LLC as special servicer of the 245 Park Avenue Mortgage Loan prior toApril 13, 2021 listed on the Exhibit Index are omitted from this Annual Reporton Form 10-K for the reasons set forth in the Explanatory Notes above; and (ii)the servicer compliance statement of AEGON USA Realty Advisors, LLC as specialservicer of the 245 Park Avenue Mortgage Loan prior to April 13, 2021 listed onthe Exhibit Index is omitted from this Annual Report on Form 10-K as it is notrequired by Item 1123 of Regulation AB to be included on this Annual Report onForm 10-K because it is an unaffiliated party that is not a “servicer” that meetsthe criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

**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 With Accountantson 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 DerivativesInstruments (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,as certificate administrator and as 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 August 31, 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 Zto 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 Trust 2017-245P Transaction, are attachedhereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit Lto the trust and servicing agreement for the 245 Park Avenue Trust 2017-245PTransaction incorporated by reference as Exhibit 4.2 to this Annual Report onForm 10-K is a chart identifying the entities participating in a servicingfunction for the 245 Park Avenue Trust 2017-245P Transaction responsible foreach applicable 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 Del Amo Fashion Center MortgageLoan, which is being serviced and administered pursuant to the trust andservicing agreement for the DAFC 2017-AMO 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 DAFC 2017-AMO Transaction incorporated byreference as Exhibit 4.3 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the DAFC2017-AMO 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 TZA Multifamily Portfolio IMortgage Loan and the Park West Village Mortgage Loan, which are being servicedand administered pursuant to the pooling and servicing agreement for the UBS2017-C2 Transaction, are attached hereto under Item 15 to this Annual Report onForm 10-K. Attached as Exhibit Z to the pooling and servicing agreement for theUBS 2017-C2 Transaction incorporated by reference as Exhibit 4.4 to this AnnualReport on Form 10-K is a chart identifying the entities participating in aservicing function for the UBS 2017-C2 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 such assessmentsof compliance with respect to the Center 78 Mortgage Loan and the JW MarriottChicago Mortgage Loan, which are being serviced and administered pursuant tothe pooling and servicing agreement for the CSAIL 2017-CX9 Transaction, areattached hereto under Item 15 to this Annual Report on Form 10-K. Attached asExhibit AA to the pooling and servicing agreement for the CSAIL 2017-CX9Transaction incorporated by reference as Exhibit 4.5 to this Annual Report onForm 10-K is a chart identifying the entities participating in a servicingfunction for the CSAIL 2017-CX9 Transaction responsible for each applicableservicing 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 District Mortgage Loan, which isbeing serviced and administered pursuant to the pooling and servicing agreementfor the UBS 2017-C4 Transaction, are attached hereto under Item 15 to thisAnnual Report on Form 10-K. Attached as Exhibit Z to the pooling and servicingagreement for the UBS 2017-C4 Transaction incorporated by reference as Exhibit4.6 to this Annual Report on Form 10-K is a chart identifying the entitiesparticipating in a servicing function for the UBS 2017-C4 Transactionresponsible for each applicable 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 American Cancer Society CenterMortgage Loan and the OKC Outlets Mortgage Loan, which are being serviced andadministered pursuant to the pooling and servicing agreement for the MSBAM 2017-C34Transaction, are attached hereto under Item 15 to this Annual Report on Form10-K. Attached as Exhibit AA to the pooling and servicing agreement for theMSBAM 2017-C34 Transaction incorporated by reference as Exhibit 4.7 to thisAnnual Report on Form 10-K is a chart identifying the entities participating ina servicing function for the MSBAM 2017-C34 Transaction responsible for eachapplicable servicing criteria set forth 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 with respectto 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 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 Exhibit4.1 to the registrant’s Current Report on Form 8-K filed on August 31, 2017under Commission File No. 333-207340-03 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 August 31, 2017 under Commission File No. 333-207340-03 andincorporated by reference herein).

4.3           Trust and Servicing Agreement, dated as of June 20, 2017,by and among Banc of America Merrill Lynch Large Loan, Inc., as Depositor,KeyBank National Association, as Servicer, Cohen Financial, a Division ofTruist Bank (f/k/a Cohen Financial, a Division of SunTrust Bank), as SpecialServicer, Wells Fargo Bank, National Association, as Certificate Administrator,Wilmington Trust, National Association, as Trustee, and Park Bridge LenderServices LLC, as Operating Advisor (filed as Exhibit 4.2 to the registrant’sCurrent Report on Form 8-K filed on August 31, 2017 under Commission File No.333-207340-03 and incorporated by reference herein).

4.4           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 Exhibit4.3 to the registrant’s Current Report on Form 8-K filed on August 31, 2017under Commission File No. 333-207340-03 and incorporated by reference herein).

4.5           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, Wells Fargo Bank, National Association, asCertificate Administrator and as Trustee, and Pentalpha Surveillance LLC, asOperating Advisor and as Asset Representations Reviewer (filed as Exhibit 4.1to the registrant’s Current Report on Form 8-K filed on October 4, 2017 underCommission File No. 333-207340-03 and incorporated by reference herein).

4.6           Pooling and Servicing Agreement, dated as of October 1,2017, by and among UBS Commercial Mortgage Securitization Corp., as Depositor,Wells Fargo Bank, National Association, as Master Servicer, Rialto CapitalAdvisors, LLC, as Special Servicer, AEGON USA Realty Advisors, LLC, asFairmount at Brewerytown Special Servicer, Wells Fargo Bank, NationalAssociation, as Certificate Administrator, Wilmington Trust, NationalAssociation, as Trustee, and Pentalpha Surveillance LLC, as Operating Advisorand as Asset Representations Reviewer (filed as Exhibit 4.1 to the registrant’sCurrent Report on Form 8-K filed on October 24, 2017 under Commission File No.333-207340-03 and incorporated by reference herein).

4.7           Pooling and Servicing Agreement, dated as of October 1,2017, by and among Banc of America Merrill Lynch Commercial Mortgage Inc., asDepositor, Wells Fargo Bank, National Association, as Master Servicer, LNRPartners, LLC, as Special Servicer, Wells Fargo Bank, National Association, asCertificate Administrator, Wilmington Trust, National Association, as Trustee,and Park Bridge Lender Services LLC, as Operating Advisor and AssetRepresentations Reviewer (filed as Exhibit 4.2 to the registrant’s CurrentReport on Form 8-K filed on October 24, 2017 under Commission File No.333-207340-03 and incorporated by reference herein).

4.8           Co-Lender Agreement, dated as of May 12, 2017, by andamong Bank of America, N.A., as Initial Note 1 Holder, and Barclays Bank PLC,as Initial Note 2 Holder, and Société Générale, as Initial Note 3 Holder, andWells Fargo Bank, National Association, as Initial Note 4 Holder (filed asExhibit 4.5 to the registrant’s Current Report on Form 8-K filed on August 31,2017 under Commission File No. 333-207340-03 and incorporated by referenceherein).

4.9           Agreement Between Note Holders, dated as of August 17,2017, by and between Société Générale, as Initial Note A-1 Holder, and SociétéGénérale, as Initial Note A-2 Holder, and Société Générale, as Initial Note A-3Holder, and Société Générale, as Initial Note A-4 Holder (filed as Exhibit 4.6to the registrant’s Current Report on Form 8-K filed on August 31, 2017 underCommission File No. 333-207340-03 and incorporated by reference herein).

4.10         Agreement Between Noteholders, dated as of July 31, 2017,by and among KeyBank National Association, as Initial Note A-1 Holder, KeyBankNational Association, as Initial Note A-2 Holder, and KeyBank NationalAssociation, as Initial Note A-3 Holder (filed as Exhibit 4.7 to theregistrant’s Current Report on Form 8-K filed on August 31, 2017 underCommission File No. 333-207340-03 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, Société Générale, Deutsche Bank AG, New York Branch, and Barclays Bank PLC(filed as Exhibit 4.8 to the registrant’s Current Report on Form 8-K filed onAugust 31, 2017 under Commission File No. 333-207340-03 and incorporated byreference herein).

4.12         Agreement Between Noteholders, dated as of April 28,2017, by and among KeyBank National Association, as Initial Note A-1 Holder,and KeyBank National Association, as Initial Note A-2 Holder (filed as Exhibit4.9 to the registrant’s Current Report on Form 8-K filed on August 31, 2017under Commission File No. 333-207340-03 and incorporated by reference herein).

4.13         Agreement Among Noteholders, dated as of July 19, 2017,by and among UBS AG, by and through its branch office at 1285 Avenue of theAmericas, New York, New York, as Initial Note A-1 Holder, Initial Note A-2Holder, Initial Note A-3 Holder, Initial Note A-4 Holder, Initial Note A-5Holder, and Initial Note A-6 Holder, and Athene Annuity and Life Company, anIowa company doing business in New York under fictitious name MLS, Athene Iowa,as Initial Note B-1 Holder and Initial Note B-2 Holder, and Athene Annuity& Life Assurance Company, a Delaware company doing business in New Yorkunder fictitious name MLS, Athene Delaware, as Initial Note B-3 Holder (filed asExhibit 4.10 to the registrant’s Current Report on Form 8-K filed on August 31,2017 under Commission File No. 333-207340-03 and incorporated by referenceherein).

4.14         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 4.11 to the registrant’s Current Report on Form 8-K filed onAugust 31, 2017 under Commission File No. 333-207340-03 and incorporated byreference herein).

4.15         Co-Lender Agreement, dated as of August 31, 2017, by andbetween Natixis Real Estate Capital LLC, as Initial Note A-1 Holder, NatixisReal Estate Capital LLC, as Initial Note A-2 Holder, and Natixis Real EstateCapital LLC, as Initial Junior Noteholder (filed as Exhibit 4.12 to theregistrant’s Current Report on Form 8-K filed on August 31, 2017 underCommission File No. 333-207340-03 and incorporated by reference herein).

4.16         Agreement Between Noteholders, dated as of July 25, 2017,by and among KeyBank National Association, as Initial Note A-1 Holder, andKeyBank National Association, as Initial Note A-2 Holder (filed as Exhibit 4.13to the registrant’s Current Report on Form 8-K filed on August 31, 2017 underCommission File No. 333-207340-03 and incorporated by reference herein).

4.17         Co-Lender and Future Funding Indemnification Agreement,dated as of August 17, 2017, between Natixis Real Estate Capital LLC, as NoteA-1 Holder, and Natixis Real Estate Capital LLC, as Note A-2 Holder, andNatixis Real Estate Capital LLC, as Note A-3 Holder, and Natixis Real EstateCapital LLC, as Note A-4 Holder, and Natixis Real Estate Capital LLC, as FutureFunding Indemnitor (filed as Exhibit 4.14 to the registrant’s Current Report onForm 8-K filed on August 31, 2017 under Commission File No. 333-207340-03 andincorporated by reference herein).

4.18         Agreement Between Note Holders, dated as of August 31,2017, by and between UBS AG, by and through its branch office at 1285 Avenue ofthe Americas, New York, New York, as Initial Note A-1 Holder, UBS AG, by andthrough its branch office at 1285 Avenue of the Americas, New York, New York,as Initial Note A-2 Holder, UBS AG, by and through its branch office at 1285Avenue of the Americas, New York, New York, as Initial Note A-3 Holder, UBS AG,by and through its branch office at 1285 Avenue of the Americas, New York, NewYork, as Initial Note A-4 Holder, and UBS AG, by and through its branch officeat 1285 Avenue of the Americas, New York, New York, as Initial Note A-5 Holder(filed as Exhibit 4.15 to the registrant’s Current Report on Form 8-K filed onAugust 31, 2017 under Commission File No. 333-207340-03 and incorporated byreference herein).

4.19         Primary Servicing Agreement, Dated as of August 1, 2017,by and between Midland Loan Services, a Division of PNC Bank, National Association,as Master Servicer, and KeyBank National Association, as Primary Servicer(filed as Exhibit 4.16 to the registrant’s Current Report on Form 8-K filed onAugust 31, 2017 under Commission File No. 333-207340-03 and incorporated byreference herein).

 

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

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

33.1        Midland Loan Services, a Division of PNC Bank,National Association, as Master Servicer

33.2        Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer (see Exhibit 33.1)

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

33.4        Wells Fargo Bank, National Association, asCustodian

33.5        Park Bridge Lender Services LLC, as OperatingAdvisor

33.6        KeyBank National Association, as Primary Servicer

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

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

33.9        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 33.1)

33.10      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 33.1)

33.11      Wells Fargo Bank, National Association, as Trustee of the Great Valley CommerceCenter Mortgage Loan (Omitted. See Explanatory Notes.)

33.12      Wells Fargo Bank, National Association, asCustodian of the Great Valley Commerce Center Mortgage Loan (see Exhibit 33.4)

33.13      Park Bridge Lender Services LLC, as OperatingAdvisor of the Great Valley Commerce Center Mortgage Loan (see Exhibit 33.5)

33.14      Computershare Trust Company, National Association, asServicing Function Participant for the Custodian on and after November 1, 2021(see Exhibit 33.8)

33.15      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 33.1)

33.16      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 33.1)

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

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

33.19      Park Bridge Lender Services LLC, as OperatingAdvisor of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 33.5)

33.20      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

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

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

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

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

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

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

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

33.28      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.29      KeyBank National Association, as Primary Servicerof the Del Amo Fashion Center Mortgage Loan (see Exhibit 33.6)

33.30      Situs Holdings, LLC, as Special Servicer of theDel Amo Fashion Center Mortgage Loan (see Exhibit 33.23)

33.31      Wilmington Trust, National Association, as Trustee of the Del Amo FashionCenter Mortgage Loan (Omitted. See Explanatory Notes.)

33.32      Wells Fargo Bank, National Association, asCustodian of the Del Amo Fashion Center Mortgage Loan (see Exhibit 33.4)

33.33      Park Bridge Lender Services LLC, as OperatingAdvisor of the Del Amo Fashion Center Mortgage Loan (see Exhibit 33.5)

33.34      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.35      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 33.1)

33.36      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 33.1)

33.37      Wells Fargo Bank, National Association, as Trustee of the TZA MultifamilyPortfolio I Mortgage Loan (Omitted. See Explanatory Notes.)

33.38      Wells Fargo Bank, National Association, asCustodian of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 33.4)

33.39      Park Bridge Lender Services LLC, as OperatingAdvisor of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 33.5)

33.40      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.41      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Park West Village MortgageLoan (see Exhibit 33.1)

33.42      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Park West Village MortgageLoan (see Exhibit 33.1)

33.43      Wells Fargo Bank, National Association, as Trustee of the Park West VillageMortgage Loan (Omitted. See Explanatory Notes.)

33.44      Wells Fargo Bank, National Association, as Custodianof the Park West Village Mortgage Loan (see Exhibit 33.4)

33.45      Park Bridge Lender Services LLC, as OperatingAdvisor of the Park West Village Mortgage Loan (see Exhibit 33.5)

33.46      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.47      KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 33.6)

33.48      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan

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

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

33.51      Pentalpha Surveillance LLC, as Operating Advisorof the JW Marriott Chicago Mortgage Loan

33.52      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.53      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 33.6)

33.54      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 33.48)

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

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

33.57      Pentalpha Surveillance LLC, as Operating Advisorof the Center 78 Mortgage Loan (see Exhibit 33.51)

33.58      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.59      Wells Fargo Bank, National Association, as PrimaryServicer of The District Mortgage Loan (see Exhibit 33.21)

33.60      Rialto Capital Advisors, LLC, as Special Servicer ofThe District Mortgage Loan (see Exhibit 33.48)

33.61      Wilmington Trust, National Association, as Trustee of The District MortgageLoan (Omitted. See Explanatory Notes.)

33.62      Wells Fargo Bank, National Association, asCustodian of The District Mortgage Loan (see Exhibit 33.4)

33.63      Pentalpha Surveillance LLC, as Operating Advisorof The District Mortgage Loan (see Exhibit 33.51)

33.64      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of The District Mortgage Loan (see Exhibit 33.27)

33.65      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.66      KeyBank National Association, as Primary Servicerof the American Cancer Society Center Mortgage Loan (see Exhibit 33.6)

33.67      LNR Partners, LLC, as Special Servicer of theAmerican Cancer Society Center Mortgage Loan

33.68      Wilmington Trust, National Association, as Trustee of the American CancerSociety Center Mortgage Loan (Omitted. See Explanatory Notes.)

33.69      Wells Fargo Bank, National Association, asCustodian of the American Cancer Society Center Mortgage Loan (see Exhibit33.4)

33.70      Park Bridge Lender Services LLC, as OperatingAdvisor of the American Cancer Society Center Mortgage Loan (see Exhibit 33.5)

33.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

33.72      KeyBank National Association, as Primary Servicerof the OKC Outlets Mortgage Loan (see Exhibit 33.6)

33.73      LNR Partners, LLC, as Special Servicer of the OKCOutlets Mortgage Loan (see Exhibit 33.67)

33.74      Wilmington Trust, National Association, as Trustee of the OKC Outlets MortgageLoan (Omitted. See Explanatory Notes.)

33.75      Wells Fargo Bank, National Association, asCustodian of the OKC Outlets Mortgage Loan (see Exhibit 33.4)

33.76      Park Bridge Lender Services LLC, as OperatingAdvisor of the OKC Outlets Mortgage Loan (see Exhibit 33.5)

33.77      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 33.8)

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

34.1        Midland Loan Services, a Division of PNC Bank,National Association, as Master Servicer

34.2        Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer (see Exhibit 34.1)

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

34.4        Wells Fargo Bank, National Association, asCustodian

34.5        Park Bridge Lender Services LLC, as OperatingAdvisor

34.6        KeyBank National Association, as Primary Servicer

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

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

34.9        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 34.1)

34.10      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 34.1)

34.11      Wells Fargo Bank, National Association, as Trustee of the Great Valley CommerceCenter Mortgage Loan (Omitted. See Explanatory Notes.)

34.12      Wells Fargo Bank, National Association, asCustodian of the Great Valley Commerce Center Mortgage Loan (see Exhibit 34.4)

34.13      Park Bridge Lender Services LLC, as OperatingAdvisor of the Great Valley Commerce Center Mortgage Loan (see Exhibit 34.5)

34.14      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.15      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 34.1)

34.16      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 34.1)

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

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

34.19      Park Bridge Lender Services LLC, as OperatingAdvisor of the IC Leased Fee Hotel Portfolio Mortgage Loan (see Exhibit 34.5)

34.20      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

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

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

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

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

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

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

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

34.28      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.29      KeyBank National Association, as Primary Servicerof the Del Amo Fashion Center Mortgage Loan (see Exhibit 34.6)

34.30      Situs Holdings, LLC, as Special Servicer of the DelAmo Fashion Center Mortgage Loan (see Exhibit 34.23)

34.31      Wilmington Trust, National Association, as Trustee of the Del Amo FashionCenter Mortgage Loan (Omitted. See Explanatory Notes.)

34.32      Wells Fargo Bank, National Association, asCustodian of the Del Amo Fashion Center Mortgage Loan (see Exhibit 34.4)

34.33      Park Bridge Lender Services LLC, as OperatingAdvisor of the Del Amo Fashion Center Mortgage Loan (see Exhibit 34.5)

34.34      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.35      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 34.1)

34.36      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 34.1)

34.37      Wells Fargo Bank, National Association, as Trustee of the TZA MultifamilyPortfolio I Mortgage Loan (Omitted. See Explanatory Notes.)

34.38      Wells Fargo Bank, National Association, asCustodian of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 34.4)

34.39      Park Bridge Lender Services LLC, as Operating Advisorof the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 34.5)

34.40      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.41      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Park West Village MortgageLoan (see Exhibit 34.1)

34.42      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Park West Village MortgageLoan (see Exhibit 34.1)

34.43      Wells Fargo Bank, National Association, as Trustee of the Park West VillageMortgage Loan (Omitted. See Explanatory Notes.)

34.44      Wells Fargo Bank, National Association, asCustodian of the Park West Village Mortgage Loan (see Exhibit 34.4)

34.45      Park Bridge Lender Services LLC, as OperatingAdvisor of the Park West Village Mortgage Loan (see Exhibit 34.5)

34.46      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.47      KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 34.6)

34.48      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan

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

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

34.51      Pentalpha Surveillance LLC, as Operating Advisorof the JW Marriott Chicago Mortgage Loan

34.52      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.53      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 34.6)

34.54      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 34.48)

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

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

34.57      Pentalpha Surveillance LLC, as Operating Advisorof the Center 78 Mortgage Loan (see Exhibit 34.51)

34.58      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.59      Wells Fargo Bank, National Association, as PrimaryServicer of The District Mortgage Loan (see Exhibit 34.21)

34.60      Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 34.48)

34.61      Wilmington Trust, National Association, as Trustee of The District MortgageLoan (Omitted. See Explanatory Notes.)

34.62      Wells Fargo Bank, National Association, asCustodian of The District Mortgage Loan (see Exhibit 34.4)

34.63      Pentalpha Surveillance LLC, as Operating Advisorof The District Mortgage Loan (see Exhibit 34.51)

34.64      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of The District Mortgage Loan (see Exhibit 34.27)

34.65      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.66      KeyBank National Association, as Primary Servicerof the American Cancer Society Center Mortgage Loan (see Exhibit 34.6)

34.67      LNR Partners, LLC, as Special Servicer of theAmerican Cancer Society Center Mortgage Loan

34.68      Wilmington Trust, National Association, as Trustee of the American CancerSociety Center Mortgage Loan (Omitted. See Explanatory Notes.)

34.69      Wells Fargo Bank, National Association, asCustodian of the American Cancer Society Center Mortgage Loan (see Exhibit34.4)

34.70      Park Bridge Lender Services LLC, as OperatingAdvisor of the American Cancer Society Center Mortgage Loan (see Exhibit 34.5)

34.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

34.72      KeyBank National Association, as Primary Servicerof the OKC Outlets Mortgage Loan (see Exhibit 34.6)

34.73      LNR Partners, LLC, as Special Servicer of the OKCOutlets Mortgage Loan (see Exhibit 34.67)

34.74      Wilmington Trust, National Association, as Trustee of the OKC Outlets Mortgage Loan(Omitted. See Explanatory Notes.)

34.75      Wells Fargo Bank, National Association, asCustodian of the OKC Outlets Mortgage Loan (see Exhibit 34.4)

34.76      Park Bridge Lender Services LLC, as OperatingAdvisor of the OKC Outlets Mortgage Loan (see Exhibit 34.5)

34.77      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian on and after November 1,2021 (see Exhibit 34.8)

35           Servicer compliance statements.

35.1        Midland Loan Services, a Division of PNC Bank,National Association, as Master Servicer

35.2        Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer (see Exhibit 35.1)

35.3        Wells Fargo Bank, National Association, asCertificate Administrator

35.4        KeyBank National Association, as Primary Servicer

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

35.6        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 35.1)

35.7        Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Great Valley Commerce CenterMortgage Loan (see Exhibit 35.1)

35.8        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 35.1)

35.9        Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the IC Leased Fee Hotel PortfolioMortgage Loan (see Exhibit 35.1)

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

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

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

35.13      KeyBank National Association, as Primary Servicerof the Del Amo Fashion Center Mortgage Loan (see Exhibit 35.4)

35.14      Situs Holdings, LLC, as Special Servicer of theDel Amo Fashion Center Mortgage Loan (see Exhibit 35.12)

35.15      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 35.1)

35.16      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 35.1)

35.17      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Park West Village MortgageLoan (see Exhibit 35.1)

35.18      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Park West Village MortgageLoan (see Exhibit 35.1)

35.19      KeyBank National Association, as Primary Servicerof the JW Marriott Chicago Mortgage Loan (see Exhibit 35.4)

35.20      Rialto Capital Advisors, LLC, as Special Servicerof the JW Marriott Chicago Mortgage Loan

35.21      KeyBank National Association, as Primary Servicer ofthe Center 78 Mortgage Loan (see Exhibit 35.4)

35.22      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 35.20)

35.23      Wells Fargo Bank, National Association, as PrimaryServicer of The District Mortgage Loan (see Exhibit 35.10)

35.24      Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 35.20)

35.25      KeyBank National Association, as Primary Servicerof the American Cancer Society Center Mortgage Loan (see Exhibit 35.4)

35.26      LNR Partners, LLC, as Special Servicer of theAmerican Cancer Society Center Mortgage Loan

35.27      KeyBank National Association, as Primary Servicerof the OKC Outlets Mortgage Loan (see Exhibit 35.4)

35.28      LNR Partners, LLC, as Special Servicer of the OKCOutlets Mortgage Loan (see Exhibit 35.26)

99.1         Mortgage Loan Purchase Agreement, dated as of August 17,2017, between UBS AG, by and through its New York branch office at 1285 Avenueof the Americas, New York, New York and UBS Commercial Mortgage SecuritizationCorp. (filed as Exhibit 99.3 to the registrant’s Current Report on Form 8-Kfiled on August 31, 2017 under Commission File No. 333-207340-03  andincorporated by reference herein)

99.2         Mortgage Loan Purchase Agreement, dated as of August 17,2017, between Société Générale and UBS Commercial Mortgage Securitization Corp.(filed as Exhibit 99.2 to the registrant’s Current Report on Form 8-K filed onAugust 31, 2017 under Commission File No. 333-207340-03  and incorporatedby reference herein)

99.3         Mortgage Loan Purchase Agreement, dated as of August 17,2017, between KeyBank National Association and UBS Commercial MortgageSecuritization Corp. (filed as Exhibit 99.1 to the registrant’s Current Reporton Form 8-K filed on August 31, 2017 under Commission File No. 333-207340-03and incorporated by reference herein)

99.4         Mortgage Loan Purchase Agreement, dated as of August 17,2017, between Natixis Real Estate Capital LLC and UBS Commercial MortgageSecuritization Corp. (filed as Exhibit 99.4 to the registrant’s Current Reporton Form 8-K filed on August 31, 2017 under Commission File No.333-207340-03  and incorporated by reference herein)

99.5         Mortgage Loan Purchase Agreement, dated as of August 17,2017, between Rialto Mortgage Finance, LLC and UBS Commercial MortgageSecuritization Corp. (filed as Exhibit 99.5 to the registrant’s Current Reporton Form 8-K filed on August 31, 2017 under Commission File No.333-207340-03  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.

UBS Commercial MortgageSecuritization Corp.(Depositor)

/s/Nicholas Galeone

NicholasGaleone, President

(senior officer in charge ofsecuritization of the depositor)

Date: March 15, 2022

/s/ AndrewLisa

Andrew Lisa, Associate Director

Date: March 15, 2022