**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, 2022or**

**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 Computershare Trust Company, National Association, as agent for**

**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 o No

Indicate by check mark whether the registrant has submittedelectronically every Interactive Data File required to be submitted pursuant toRule 405 of Regulation S-T (Section 232.405 of this chapter) during thepreceding 12 months (or for such shorter period that the registrant wasrequired to submit such files).

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 “emerginggrowth 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

If securities are registered pursuant to Section 12(b) of theAct, indicate by check mark whether the financial statements of the registrantincluded in the filing reflect the correction of an error to previously issuedfinancial statements. o

Indicate by check mark whether any of those error correctionsare restatements that required a recovery analysis of incentive-basedcompensation received by any of the registrant’s executive officers during therelevant recovery period pursuant to §240.10D-1(b). 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 o No

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 constituted approximately3.9% and 3.8%, respectively, of the asset pool of the issuing entity as of itscut-off date, are each an asset of the issuing entity and are each part of aloan combination that includes (a) with respect to the Great Valley CommerceCenter Mortgage Loan, one other *pari passu* loan, which is not an assetof the issuing entity and (b) with respect to the IC Leased Fee Hotel PortfolioMortgage Loan, three other *pari passu* loans, which are not assets of theissuing entity. These loan combinations, including the Great Valley CommerceCenter Mortgage Loan and the IC Leased Fee Hotel Portfolio Mortgage Loan, arebeing serviced and administered pursuant to the Pooling and ServicingAgreement, which is incorporated by reference as Exhibit 4.1 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 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 describes exhibitsprovided 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 describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the JW Marriott Chicago Mortgage Loan and theCenter 78 Mortgage Loan, which constituted approximately 4.0% and 4.0%,respectively, of the asset pool of the issuing entity as of its cut-offdate.  The JW Marriott Chicago Mortgage Loan and Center 78 Mortgage Loanare each an asset of the issuing entity and are each part of a loan combinationthat includes (a) with respect to the JW Marriott Chicago Mortgage Loan, twoother *pari passu* loans and three subordinate companion loans, which arenot assets of the issuing entity or (b) with respect to the Center 78 MortgageLoan, one other *pari passu* loan and one subordinate companion loan,which are not assets of the issuing entity. These loan combinations, includingthe JW Marriott Chicago Mortgage Loan and the Center 78 Mortgage Loan, wereserviced under the Pooling and Servicing Agreement for the issuing entity priorto the closing of the securitization of a *pari passu* portion of the JWMarriott Chicago 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 issuing entity. Thisloan combination, including The District Mortgage Loan, was serviced under thePooling and Servicing Agreement for the issuing entity prior to the closing ofthe securitization of a *pari passu* portion of The District loancombination in the UBS Commercial Mortgage Trust 2017-C4 transaction,Commission File Number 333-207340-04 (the “UBS 2017-C4 Transaction”). After the closing of the UBS 2017-C4 Transaction on October 18, 2017, this loancombination, including The District Mortgage Loan was, and will continue to be,serviced and administered pursuant to the pooling and servicing agreement withrespect to the UBS 2017-C4 Transaction, which is incorporated by reference asExhibit 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 OKC Outlets Mortgage Loan, which constitutedapproximately 5.2% of the asset pool of the issuing entity as of its cut-offdate.  The OKC Outlets Mortgage Loan is an asset of the issuing entity andis part of a loan combination that includes the OKC Outlets Mortgage Loan andone other *pari passu* loan, which is not an asset of the issuingentity.This loan combination, including the OKC Outlets 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 the OKCOutlets loan combination in the Morgan Stanley Bank of America Merrill LynchTrust 2017 C34 transaction, Commission File Number 333-206847-07 (the “MSBAM2017-C34 Transaction”).  After the closing of the MSBAM 2017-C34Transaction on October 19, 2017, this loan combination, including the OKCOutlets Mortgage Loan was, and will continue to be, serviced and administeredpursuant to the pooling and servicing agreement with respect to the MSBAM2017-C34 Transaction, which is incorporated by reference as Exhibit 4.7 to thisAnnual Report on Form 10-K. The American Cancer Society Center Mortgage Loan,previously an asset of the issuing entity being serviced under the pooling andservicing agreement for the MSBAM 2017-C34 Transaction, was not an asset of theissuing entity during the reporting period and is omitted from this AnnualReport on Form 10-K and will be omitted from subsequent Annual Reports on Form10-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 I MortgageLoan and the Park West Village Mortgage Loan. As a result, Midland LoanServices, 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, NationalAssociation is the custodian of the mortgage loans serviced under the Poolingand Servicing Agreement, the TZA Multifamily Portfolio I Mortgage Loan, the DelAmo Fashion Center Mortgage Loan, the 245 Park Avenue Mortgage Loan, the OKCOutlets Mortgage Loan, the Park West Village Mortgage Loan, the Center 78Mortgage Loan, the JW Marriott Chicago Mortgage Loan and The District 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 the ExhibitIndex.

Park Bridge Lender Services LLC isthe operating advisor of the mortgage loans serviced under the Pooling andServicing Agreement, the TZA Multifamily Portfolio I Mortgage Loan, the Del AmoFashion Center Mortgage Loan, the OKC Outlets Mortgage Loan and the Park WestVillage Mortgage Loan.  As a result, Park Bridge Lender Services LLC is aservicing function participant in the capacities described above, because it isservicing mortgage loans that constituted 5% or more of the assets of the issuingentity as of its cut-off date. The assessments of compliance with applicableservicing criteria and accountants’ attestation reports delivered by ParkBridge Lender Services LLC in the capacities described above are listed in theExhibit Index.

KeyBank National Association isthe primary servicer of the Del Amo Fashion Center Mortgage Loan, the OKCOutlets Mortgage Loan, the Center 78 Mortgage Loan and the JW Marriott ChicagoMortgage Loan. As a result, KeyBank National Association is a “servicer” as definedin Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above,because it is servicing mortgage loans that constituted 10% or more of theassets 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.

Situs Holdings, LLC, successor toCohen Financial, a Division of Truist Bank, successor by merger to SunTrustBank is the special servicer of the Del Amo Fashion Center Mortgage Loan andSitus Holdings, LLC is the special servicer of the 245 Park Avenue MortgageLoan. As a result, Situs Holdings, 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 with applicableservicing criteria, accountants’ attestation reports and servicer compliancestatements delivered by Situs Holdings, LLC in the capacities described aboveare listed 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 theoperating advisor of the Center 78 Mortgage Loan, the JW Marriott ChicagoMortgage Loan and The District Mortgage Loan.  As a result, PentalphaSurveillance LLC is a servicing function participant in the capacitiesdescribed above, because it is servicing mortgage loans that constituted 5% ormore of the assets of the issuing entity as of its cut-off date. Theassessments of compliance with applicable servicing criteria and accountants’attestation reports delivered by Pentalpha Surveillance LLC in the capacitiesdescribed above are listed in the Exhibit Index.

BellOak, LLC is the operatingadvisor of the 245 Park Avenue Mortgage Loan, which constituted approximately5.4% of the asset pool of the issuing entity as of its cut-off date. Inaccordance with the Compliance and Disclosure Interpretations, Section 200.03(Rules 13a-18 and 15d-18, Servicer’s Assessment of Compliance), this percentagemust be reduced pro rata because it was only acting as operating advisor of the245 Park Avenue Mortgage Loan from December 14, 2022 to December 31, 2022. As aresult, it falls below the de minimis requirements in Item 1122 of Regulation ABand no such assessment or attestation is required.

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 and the OKC OutletsMortgage Loan.  Pursuant to the trust and servicing agreement for the 245Park Avenue Trust 2017-245P Transaction, the trust and servicing agreement forthe DAFC 2017-AMO Transaction, the pooling and servicing agreement for the UBS2017-C4 Transaction and the pooling and servicing agreement for the MSBAM2017-C34 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 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 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 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 and the OKC Outlets Mortgage Loan have delivered one or moreassessments of compliance with respect to Item 1122(d)(2)(iii) of RegulationAB.

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) ofRegulation AB that looks to the functions that an entity performs, this vendoris a “servicer” for the purposes of Item 1122 of Regulation AB.  *See*Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

This AnnualReport on Form 10-K includes an assessment of compliance with applicableservicing criteria, accountants’ attestation report and servicer compliancestatement from Computershare Trust Company, National Association (“CTCNA”). CTCNA was 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.  *See*Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

The assessments of compliance withapplicable servicing criteria, accountants’ attestation reports and servicercompliance statements of the certificate administrator of the 245 Park AvenueMortgage Loan, the Del Amo Fashion Center Mortgage Loan, the Park West VillageMortgage Loan, the TZA Multifamily Portfolio I Mortgage Loan, the Center 78Mortgage Loan, the JW Marriott Chicago Mortgage Loan, The District MortgageLoan and the OKC Outlets Mortgage Loan are omitted from this Annual Report onForm 10-K as 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 and the OKC Outlets MortgageLoan, (i) the report on assessment of compliance with servicing criteria andattestation report on assessment of compliance with servicing criteria ofBellOak, LLC as operating advisor of the 245 Park Avenue Mortgage Loan on andafter December 14, 2022 listed on the Exhibit Index are omitted from thisAnnual Report on Form 10-K for the reasons set forth in the Explanatory Notesabove; and (ii) the servicer compliance statement of LNR Partners, LLC asspecial servicer of the OKC Outlets Mortgage Loan, listed on the Exhibit Indexis omitted from this Annual Report on Form 10-K as it is not required by Item1123 of Regulation AB to be included on this Annual Report on Form 10-K becauseit is an unaffiliated party that is not a “servicer” that meets the criteria inItem 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, RelatedStockholder Matters and Issuer Purchases of Equity Securities.**

Omitted.

**Item 6. **

[Reserved]

**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.

**Item 9C.  Disclosure Regarding Foreign Jurisdictionsthat Prevent Inspections.**

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 Accountant 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,certificate administrator and custodian. 

In December2014, Phoenix Light SF Limited (Phoenix Light) and certain related entitiesfiled a complaint in the United States District Court for the Southern Districtof New York alleging claims against Wells Fargo Bank, N.A., in its capacity astrustee for a number of residential mortgage-backed securities (RMBS) trusts.Complaints raising similar allegations have been filed by Commerzbank AG in theSouthern District of New York and by IKB International and IKB DeutscheIndustriebank in New York state court. In each case, the plaintiffs allege thatWells Fargo Bank, N.A., as trustee, caused losses to investors, and plaintiffsassert causes of action based upon, among other things, the trustee’s allegedfailure to notify and enforce repurchase obligations of mortgage loan sellersfor purported breaches of representations and warranties, notify investors ofalleged events of default, and abide by appropriate standards of care followingalleged events of default. In July 2022, the district court dismissed PhoenixLight’s claims and certain of the claims asserted by Commerzbank AG, andsubsequently entered judgment in each case in favor of Wells Fargo Bank, N.A.In August 2022, Phoenix Light and Commerzbank AG appealed the district court’sdecision to the United States Court of Appeals for the Second Circuit. TheCompany previously settled two class actions filed by institutional investors andan action filed by the National Credit Union Administration with similarallegations. In addition, Park Royal I LLC and Park Royal II LLC have filedsubstantially similar lawsuits in New York state court alleging Wells FargoBank, N.A., as trustee, failed to take appropriate actions upon learning ofdefective mortgage loan documentation.

**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 suchassessments of compliance with respect to the Center 78 Mortgage Loan and theJW Marriott Chicago Mortgage Loan, which are being serviced and administeredpursuant to the pooling and servicing agreement for the CSAIL 2017-CX9Transaction, are attached hereto under Item 15 to this Annual Report on Form10-K. Attached as Exhibit AA to the pooling and servicing agreement for theCSAIL 2017-CX9 Transaction incorporated by reference as Exhibit 4.5 to thisAnnual Report on Form 10-K is a chart identifying the entities participating ina servicing function for the CSAIL 2017-CX9 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 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 OKC Outlets Mortgage Loan, whichis being serviced and administered pursuant to the pooling and servicingagreement for the MSBAM 2017-C34 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 MSBAM 2017-C34 Transaction incorporated byreference as Exhibit 4.7 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the MSBAM2017-C34 Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

The report on assessment of compliance for the twelvemonths ended December 31, 2022, furnished pursuant to Item 1122 of Regulation ABby KeyBank National Association (“KeyBank”), as servicer, discloses that thefollowing material instance of noncompliance occurred with respect to itsplatform:

The examinationperformed by Ernst & Young LLP identified an instance of materialnoncompliance with the servicing criteria set forth in Item 1122(d)(4)(ix) ofRegulation AB applicable to KeyBank during the year ended December 31, 2022.During compliance testing, it was discovered, that not all FlexARM loanmortgagors were offered loan rates within 45-60 days before the rate changedate, as required per the related pool asset documents. Per the related note,if the holder fails to offer a loan rate within 45-60 days of any change date amargin of 2.25% is to be used. Given the notification was not made to theborrowers, a 3% margin was incorrectly applied. The noncompliance in Item 1122(d)(4)(ix) is related to a servicing portfolio which is wholly owned by theinvestor and is not held in a publicly traded security.

The followingremediation procedures have been initiated by KeyBank: (i) the impactedmortgage loans are currently in the process of being identified, (ii) investorcontact has been initiated, (iii) corrective actions are being considered andwill be tracked and monitored by senior management, (iv) procedures will bereviewed and revised, if necessary, to include new tracking and action steps toprevent this situation from recurring in the future, and (v) training will beprovided to the relevant staff members to prevent a recurrence.

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

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

**PART IV**

**Item 15. Exhibit and 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, KeyBankNational Association, as Servicer, Cohen Financial, a Division of SunTrustBank, 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 (filed as Exhibit 4.2to 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).

4.4          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         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).

4.11         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).

4.12         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 (filedas Exhibit 4.10 to the registrant’s Current Report on Form 8-K filed on August31, 2017 under Commission File No. 333-207340-03 and incorporated by referenceherein).

4.13         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).

4.14         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).

4.15         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).

4.16         Co-Lender and Future Funding Indemnification Agreement, datedas of August 17, 2017, between Natixis Real Estate Capital LLC, as Note A-1Holder, and Natixis Real Estate Capital LLC, as Note A-2 Holder, and NatixisReal Estate Capital LLC, as Note A-3 Holder, and Natixis Real Estate CapitalLLC, as Note A-4 Holder, and Natixis Real Estate Capital LLC, as Future FundingIndemnitor (filed as Exhibit 4.14 to the registrant’s Current Report on Form8-K filed on August 31, 2017 under Commission File No. 333-207340-03 andincorporated by reference herein).

4.17         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).

4.18         Primary Servicing Agreement, dated as of August 1, 2017,by and between Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Master Servicer, and KeyBank National Association, as PrimaryServicer (filed as Exhibit 4.16 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).

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

33.8        Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian

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,as Servicing Function Participant for the Custodian (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, NationalAssociation, as Special Servicer of the IC Leased Fee Hotel Portfolio MortgageLoan (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 (see Exhibit 33.8)

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

33.22      Situs Holdings, LLC, as Special Servicer of the245 Park Avenue Mortgage Loan

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

33.24      Wells Fargo Bank, National Association, as Custodianof the 245 Park Avenue Mortgage Loan (see Exhibit 33.4)

33.25      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the 245 Park Avenue Mortgage Loan prior to December 14, 2022

33.26      BellOak, LLC, as Operating Advisor of the 245 Park Avenue Mortgage Loan on andafter December 14, 2022 (Omitted. See Explanatory Notes.)

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 (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, successor to Cohen Financial,a Division of Truist Bank, successor by merger to SunTrust Bank, as SpecialServicer of the Del Amo Fashion Center Mortgage Loan (see Exhibit 33.22)

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 (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 (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, asCustodian of 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 (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 (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 (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 Servicerof The 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, as Custodianof 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 (see Exhibit 33.8)

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

33.67      LNR Partners, LLC, as Special Servicer of the OKCOutlets Mortgage Loan

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

33.69      Wells Fargo Bank, National Association, as Custodianof the OKC Outlets Mortgage Loan (see Exhibit 33.4)

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

33.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (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

34.8        Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian

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, asServicing Function Participant for the Custodian (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 (see Exhibit 34.8)

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

34.22      Situs Holdings, LLC, as Special Servicer of the245 Park Avenue Mortgage Loan

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

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

34.25      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the 245 Park Avenue Mortgage Loan prior to December 14, 2022

34.26      BellOak, LLC, as Operating Advisor of the 245 Park Avenue Mortgage Loan on andafter December 14, 2022 (Omitted. See Explanatory Notes.)

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 (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, successor to Cohen Financial,a Division of Truist Bank, successor by merger to SunTrust Bank, as SpecialServicer of the Del Amo Fashion Center Mortgage Loan (see Exhibit 34.22)

34.31      Wilmington Trust, National Association, as Trustee of the Del Amo Fashion CenterMortgage 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 (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 OperatingAdvisor of 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 (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 (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 (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 (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 (see Exhibit 34.8)

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

34.67      LNR Partners, LLC, as Special Servicer of the OKCOutlets Mortgage Loan

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

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

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

34.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (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

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      Situs Holdings, LLC, as Special Servicer of the245 Park Avenue Mortgage Loan

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

35.13      Situs Holdings, LLC, successor to Cohen Financial,a Division of Truist Bank, successor by merger to SunTrust Bank, as SpecialServicer of the Del Amo Fashion Center Mortgage Loan (see Exhibit 35.11)

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

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

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

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

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

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

35.20      KeyBank National Association, as Primary Servicerof the Center 78 Mortgage Loan (see Exhibit 35.4)

35.21      Rialto Capital Advisors, LLC, as Special Servicerof the Center 78 Mortgage Loan (see Exhibit 35.19)

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

35.23      Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 35.19)

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

35.25      LNR Partners, LLC, as Special Servicer of the OKC Outlets Mortgage Loan(Omitted. See Explanatory Notes.)

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 Mortgage SecuritizationCorp. (filed as Exhibit 99.5 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)

(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 9, 2023

/s/ AndrewLisa

Andrew Lisa, Director

Date: March 9, 2023

** **