**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: 333-207340-04**

**Central Index Key Number of the issuing entity:0001716263**

**UBS Commercial Mortgage Trust2017-C4**

**(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: 0001238163**

**Société Générale, New York Branch**

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

** **

**Central Index Key Number of the sponsor: 0001541468**

**Ladder Capital Finance 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)**

** **

**Central Index Key Number of the sponsor: 0001548567**

**CIBC Inc.**

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

** **

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

**Natixis Real Estate Capital LLC**

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

** **

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

**the issuing entity)** | **38-4046694**

**38-4046695**

**38-7187327**

**(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-known seasonedissuer, 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 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“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

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 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 District Mortgage Loan, the MeridianSunrise Village Mortgage Loan, the Bank of America Office Campus Building 600Mortgage Loan and the DoubleTree Berkeley Marina Mortgage Loan, whichconstituted approximately 4.9%, 3.1%, 2.4% and 1.7%, respectively, of the assetpool of the issuing entity as of its cut-off date, are each an asset of theissuing entity and are each part of a loan combination that includes (a) withrespect to The District Mortgage Loan, three other *pari passu* loans, whichare not assets of the issuing entity, (b) with respect to the Meridian SunriseVillage Mortgage Loan, two other *pari passu* loans, which are not assetsof the issuing entity, (c) with respect to the Bank of America Office CampusBuilding 600 Mortgage Loan, one other *pari passu* loan, which is not anasset of the issuing entity and (d) with respect to the DoubleTree BerkeleyMarina Mortgage Loan, three other *pari passu* loans, which are not assetsof the issuing entity. These loan combinations, including The District MortgageLoan, the Meridian Sunrise Village Mortgage Loan, the Bank of America OfficeCampus Building 600 Mortgage Loan and the DoubleTree Berkeley Marina MortgageLoan, are being 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 3.8% of the asset pool of the issuing entity as ofits cut-off date.  The 245 Park Avenue Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the 245 ParkAvenue Mortgage Loan, twenty-one other *pari passu* loans and fivesubordinate companion loans, which are not assets of the issuing entity. A *paripassu* portion of the loan combination was securitized in the 245 ParkAvenue Trust 2017-245P transaction (the “245 Park Avenue 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 0.6% 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 Del AmoFashion Center Trust 2017-AMO transaction (the “DAFC 2017-AMO Transaction”).This loan combination, including the Del Amo Fashion Center Mortgage Loan, isbeing serviced and administered pursuant to the trust and servicing agreementfor the DAFC 2017-AMO Transaction, which is incorporated by reference asExhibit 4.3 to this Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the Park West Village Mortgage Loan and the TZAMultifamily Portfolio I Mortgage Loan, which constituted approximately 4.9% and1.0%, respectively, of the asset pool of the issuing entity as of its cut-offdate.  The Park West Village Mortgage Loan and the TZA Multifamily PortfolioI Mortgage Loan are each an asset of the issuing entity and are each part of aloan combination that includes (a) with respect to the Park West VillageMortgage Loan, three other *pari passu* loans and three subordinatecompanion loans, which are not assets of the issuing entity or (b) with respectto the TZA Multifamily Portfolio I Mortgage Loan, three other *pari passu*loans, which are not assets of the issuing entity. A *pari passu* portionof each loan combination was securitized in the UBS Commercial Mortgage Trust2017-C2 transaction, Commission File Number 333-207340-02 (the “UBS 2017-C2Transaction”). These loan combinations, including the Park West VillageMortgage Loan and the TZA Multifamily Portfolio I Mortgage Loan, are beingserviced and administered pursuant to the pooling and servicing agreement forthe UBS 2017-C2 Transaction, which is incorporated by reference as Exhibit 4.4to 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 237 Park Avenue Mortgage Loan, whichconstituted approximately 6.1% of the asset pool of the issuing entity as ofits cut-off date.  The 237 Park Avenue Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the 237 ParkAvenue Mortgage Loan, twelve other *pari passu* loans and four subordinatecompanion loans, which are not assets of the issuing entity. A *pari passu*portion of the loan combination was securitized in the MSSG Trust 2017-237Ptransaction (the “MSSG Trust 2017-237P Transaction”). This loancombination, including the 237 Park Avenue Mortgage Loan, is being serviced andadministered pursuant to the trust and servicing agreement for the MSSG Trust2017-237P Transaction, which is incorporated by reference as Exhibit 4.5 tothis Annual Report on Form 10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the JW Marriott Chicago Mortgage Loan, whichconstituted approximately 1.3% of the asset pool of the issuing entity as ofits cut-off date.  The JW Marriott Chicago Mortgage Loan is an asset ofthe issuing entity and is part of a loan combination that includes the JW MarriottChicago Mortgage Loan, two other *pari passu* loans and three subordinatecompanion loans, which are not assets of the issuing entity. A *pari passu*portion of the loan combination was securitized in the CSAIL 2017-CX9Commercial Mortgage Trust transaction, Commission File Number 333-207361-06(the “CSAIL 2017-CX9 Transaction”). This loan combination, including theJW Marriott Chicago Mortgage Loan, is being serviced and administered pursuantto the pooling and servicing agreement for the CSAIL 2017-CX9 Transaction,which is incorporated by reference as Exhibit 4.6 to this Annual Report on Form10-K.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the 50 Varick Street Mortgage Loan, whichconstituted approximately 3.1% of the asset pool of the issuing entity as ofits cut-off date.  The 50 Varick Street Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the 50 VarickStreet Mortgage Loan and two other *pari passu* loans, which are notassets of the issuing entity.This loan combination, including the 50 VarickStreet Mortgage Loan, was serviced under the Pooling and Servicing Agreementfor the issuing entity prior to the closing of the securitization of a *paripassu* portion of the 50 Varick Street loan combination in the UBSCommercial Mortgage Trust 2017-C5 transaction, Commission File Number333-207340-05 (the “UBS 2017-C5 Transaction”).  After the closingof the UBS 2017-C5 Transaction on November 16, 2017, this loan combination,including the 50 Varick Street Mortgage Loan was, and will continue to be,serviced and administered pursuant to the pooling and servicing agreement withrespect to the UBS 2017-C5 Transaction, which is incorporated by reference asExhibit 4.7 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 Macedonia Commons Mortgage Loan, which constitutedapproximately 2.0% of the asset pool of the issuing entity as of its cut-offdate.  The Macedonia Commons Mortgage Loan is an asset of the issuingentity and is part of a loan combination that includes the Macedonia CommonsMortgage Loan and one other *pari passu* loan, which is not an asset ofthe issuing entity.This loan combination, including the Macedonia CommonsMortgage Loan, was serviced under the Pooling and Servicing Agreement for theissuing entity prior to the closing of the securitization of the other *paripassu* portion of the Macedonia Commons loan combination in the Wells FargoCommercial Mortgage Trust 2017-C41 transaction, Commission File Number333-206677-20 (the “WFCM 2017-C41 Transaction”).  After the closingof the WFCM 2017-C41 Transaction on November 30, 2017, this loan combination,including the Macedonia Commons Mortgage Loan was, and will continue to be,serviced and administered pursuant to the pooling and servicing agreement withrespect to the WFCM 2017-C41 Transaction, which is incorporated by reference asExhibit 4.8 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.

Wells Fargo Bank, NationalAssociation is the master servicer and certificate administrator of themortgage loans serviced under the Pooling and Servicing Agreement, the primaryservicer of the 245 Park Avenue Mortgage Loan and the Macedonia CommonsMortgage Loan and the primary servicer and special servicer of the 237 ParkAvenue Mortgage Loan. As a result, Wells Fargo Bank, National Association is a“servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in thecapacities described above, because it is servicing mortgage loans thatconstituted 10% or more of the assets of the issuing entity as of its cut-offdate. The assessments of compliance with applicable servicing criteria,accountants’ attestation reports and servicer compliance statements deliveredby Wells Fargo Bank, National Association in the capacities described above arelisted in the Exhibit Index.

Wells Fargo Bank, NationalAssociation is the custodian of the mortgage loans serviced under the Poolingand Servicing Agreement, the 237 Park Avenue Mortgage Loan, the Park WestVillage Mortgage Loan, the 245 Park Avenue Mortgage Loan, the 50 Varick StreetMortgage Loan, the Macedonia Commons Mortgage Loan, the JW Marriott ChicagoMortgage Loan, the TZA Multifamily Portfolio I Mortgage Loan and the Del AmoFashion Center Mortgage Loan.  As a result, Wells Fargo Bank, NationalAssociation is a servicing function participant in the capacities describedabove, because it is servicing mortgage loans that constituted 5% or more ofthe assets 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.

Rialto Capital Advisors, LLC isthe special servicer of the mortgage loans serviced under the Pooling andServicing Agreement and the JW Marriott Chicago Mortgage Loan. As a result,Rialto Capital Advisors, 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 Rialto Capital Advisors, LLC in the capacities described above arelisted in the Exhibit Index.

Situs Holdings, LLC, is the special servicer of the Fairmountat Brewerytown Mortgage Loan and the 245 Park Avenue Mortgage Loan and SitusHoldings, LLC, successor to Cohen Financial, a Division of Truist Bank,successor by merger to SunTrust Bank is the special servicer of the Del AmoFashion Center Mortgage Loan.  These mortgage loans constitute more than5%, but less than 10%, of the pool assets of the issuing entity. Therefore, the Depositor included in this Annual Report on Form 10-K anassessment of compliance with applicable servicing criteria for Situs Holdings,LLC and an accountants’ attestation report pursuant to Item 1122 of RegulationAB because Situs Holdings, LLC is servicing more than 5% of the poolassets.  However, the Depositor is not required to include in this AnnualReport on Form 10-K a servicer compliance statement pursuant to Item 1123 ofRegulation AB of Situs Holdings, LLC because Situs Holdings, LLC is anunaffiliated servicer servicing less than 10% of pool assets.

Pentalpha Surveillance LLC is theoperating advisor of the mortgage loans serviced under the Pooling andServicing Agreement and the JW Marriott Chicago Mortgage Loan.  As aresult, Pentalpha Surveillance 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 Pentalpha Surveillance LLC in thecapacities described above are listed in the Exhibit Index.

Trimont Real Estate Advisors, LLCis the operating advisor of the 245 Park Avenue Mortgage Loan and the MacedoniaCommons Mortgage Loan prior to December 14, 2022.  As a result, TrimontReal Estate Advisors, 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 Trimont Real Estate Advisors, LLC in thecapacities described above are listed in the Exhibit Index.

BellOak, LLC is the operating advisorof the 245 Park Avenue Mortgage Loan and the Macedonia Commons Mortgage Loan,which constituted approximately 3.8% and 2.0%, respectively, of the asset poolof the issuing entity as of its cut-off date. In accordance with the Complianceand Disclosure Interpretations, Section 200.03 (Rules 13a-18 and 15d-18,Servicer’s Assessment of Compliance), this percentage must be reduced pro ratabecause it was only acting as operating advisor of the 245 Park Avenue MortgageLoan and the Macedonia Commons Mortgage Loan from December 14, 2022 to December31, 2022. As a result, it falls below the de minimis requirements in Item 1122of Regulation AB and no such assessment or attestation is required.

Park Bridge Lender Services LLC isthe operating advisor of the 237 Park Avenue Mortgage Loan, the Park WestVillage Mortgage Loan, the 50 Varick Street Mortgage Loan, the TZA MultifamilyPortfolio I Mortgage Loan and the Del Amo Fashion Center Mortgage Loan. As a result, Park Bridge Lender Services LLC is a servicing functionparticipant in the capacities described above, because it is servicing mortgageloans that constituted 5% or more of the assets of the issuing entity as of itscut-off date. The assessments of compliance with applicable servicing criteriaand accountants’ attestation reports delivered by Park Bridge Lender ServicesLLC in the capacities described above are listed in the Exhibit Index.

Midland Loan Services, a Divisionof PNC Bank, National Association is the primary servicer and special servicerof the TZA Multifamily Portfolio I Mortgage Loan, the Park West VillageMortgage Loan and the 50 Varick Street Mortgage Loan.  These mortgageloans constitute more than 5%, but less than 10%, of the pool assets of theissuing entity.  Therefore, the Depositor included in this Annual Reporton Form 10-K an assessment of compliance with applicable servicing criteria forMidland Loan Services, a Division of PNC Bank, National Association and anaccountants’ attestation report pursuant to Item 1122 of Regulation AB becauseMidland Loan Services, a Division of PNC Bank, National Association isservicing more than 5% of the pool assets.  However, the Depositor is notrequired to include in this Annual Report on Form 10-K a servicer compliancestatement pursuant to Item 1123 of Regulation AB of Midland Loan Services, aDivision of PNC Bank, National Association because Midland Loan Services, aDivision of PNC Bank, National Association is an unaffiliated servicerservicing less than 10% of pool assets.

Wells Fargo Bank, NationalAssociation acts as trustee of the Park West Village Mortgage Loan, the TZAMultifamily Portfolio I Mortgage Loan, the JW Marriott Chicago Mortgage Loanand the 50 Varick Street Mortgage Loan.  Pursuant to the pooling andservicing agreement for the UBS 2017-C2 Transaction, the pooling and servicingagreement for the CSAIL 2017-CX9 Transaction and the pooling and servicingagreement for the UBS 2017-C5 Transaction, the trustee is required to providean assessment of compliance with applicable servicing criteria solely withrespect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of fundsor guarantees regarding collections, cash flows or distributions, and anyinterest or other fees charged for such advances, are made, reviewed and approvedas specified in the transaction agreements). However, during the reportingperiod, the trustee did not perform any servicing function with respect to theservicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performedthe servicing function identified with respect to Item 1122(d)(2)(iii) ofRegulation AB, and each such party included Item 1122(d)(2)(iii) of RegulationAB in the assessment of compliance with applicable servicing criteria andaccountant’s attestation report for the subject transaction.  As a result,this Annual Report on Form 10-K does not include an assessment of compliancewith applicable servicing criteria of the trustee. One or more other servicersof the Park West Village Mortgage Loan, the TZA Multifamily Portfolio IMortgage Loan, the JW Marriott Chicago Mortgage Loan and the 50 Varick StreetMortgage Loan have delivered one or more assessments of compliance with respectto Item 1122(d)(2)(iii) of Regulation AB.

Wilmington Trust, NationalAssociation acts as trustee of  the mortgage loans serviced under thePooling and Servicing Agreement, the 245 Park Avenue Mortgage Loan, the Del AmoFashion Center Mortgage Loan, the 237 Park Avenue Mortgage Loan and theMacedonia Commons Mortgage Loan.  Pursuant to the Pooling and ServicingAgreement, the trust and servicing agreement for the 245 Park Avenue Trust2017-245P Transaction, the trust and servicing agreement for the DAFC 2017-AMOTransaction, the trust and servicing agreement for the MSSG Trust 2017-237PTransaction and the pooling and servicing agreement for the WFCM 2017-C41Transaction, 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 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 servicersof  the mortgage loans serviced under the Pooling and Servicing Agreement,the 245 Park Avenue Mortgage Loan, the Del Amo Fashion Center Mortgage Loan,the 237 Park Avenue Mortgage Loan and the Macedonia Commons Mortgage Loan havedelivered one or more assessments of compliance with respect to Item1122(d)(2)(iii) of Regulation AB.

This Annual Report on Form 10-Kincludes assessments of compliance with applicable servicing criteria andaccountants’ attestation reports from CoreLogic Solutions, LLC.  Thisentity was engaged by the master servicer under the Pooling and ServicingAgreement and the primary servicer of the 245 Park Avenue Mortgage Loan, the237 Park Avenue Mortgage Loan and the Macedonia Commons Mortgage Loan to remittax payments received from the escrow accounts of borrowers to local taxingauthorities, to report tax amounts due, to verify tax parcel information, andto verify non-escrow tax payments. These servicing functions are includedwithin the servicing criteria set forth in Items 1122(d)(4)(xi) and1122(d)(4)(xii) of Regulation AB.  Therefore, under the principles-baseddefinition of “servicer” set forth in Item 1101(j) of Regulation AB that looksto the functions that an entity performs, this vendor is a “servicer” for thepurposes of Item 1122 of Regulation AB.  *See* Compliance andDisclosure 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.  SeeCompliance 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 237 ParkAvenue Mortgage Loan, the JW Marriott Chicago Mortgage Loan, the 50 VarickStreet Mortgage Loan and the Macedonia Commons Mortgage Loan are omitted fromthis Annual Report on Form 10-K as the certificate administrator pursuant tothe related pooling and servicing agreement or trust and servicing agreementdoes not perform any activities that address servicing criteria with respect tothe issuing entity and because they are each not a “servicer” that meets thecriteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

With respectto the *pari passu* loan combinations that include the 245 Park AvenueMortgage Loan, the Del Amo Fashion Center Mortgage Loan, the JW MarriottChicago Mortgage Loan, the Fairmount at Brewerytown Mortgage Loan, the ParkWest Village Mortgage Loan, the TZA Multifamily Portfolio I Mortgage Loan, the50 Varick Street Mortgage Loan and the Macedonia Commons Mortgage Loan, (i) thereports on assessment of compliance with servicing criteria and attestationreports on assessment of compliance with servicing criteria of KeyBank NationalAssociation as primary servicer of the Del Amo Fashion Center Mortgage Loan andthe JW Marriott Chicago Mortgage Loan and Argentic Services Company LP asspecial servicer of the Macedonia Commons Mortgage Loan, listed on the ExhibitIndex are omitted from this Annual Report on Form 10-K as they are not requiredto be included on this Annual Report on Form 10-K per Instruction 3 to Item1122 of Regulation AB because they are parties performing activities thataddress servicing criteria relating to 5% or less of the assets of the issuingentity, and the reports on assessment of compliance with servicing criteria andattestation reports on assessment of compliance with servicing criteria ofBellOak, LLC as operating advisor of the 245 Park Avenue Mortgage Loan and theMacedonia Commons Mortgage Loan on and after December 14, 2022 listed on theExhibit Index are omitted from this Annual Report on Form 10-K for the reasonsset forth in the Explanatory Notes above; and (ii) the servicer compliancestatements of Situs Holdings, LLC as special servicer of the Fairmount atBrewerytown Mortgage Loan and the 245 Park Avenue Mortgage Loan and SitusHoldings, LLC, successor to Cohen Financial, a Division of Truist Bank,successor by merger to SunTrust Bank as special servicer of the Del Amo FashionCenter Mortgage Loan, KeyBank National Association as primary servicer of theDel Amo Fashion Center Mortgage Loan and the JW Marriott Chicago Mortgage Loan,Midland Loan Services, a Division of PNC Bank, National Association as primaryservicer and special servicer of the Park West Village Mortgage Loan, the TZAMultifamily Portfolio I Mortgage Loan and the 50 Varick Street Mortgage Loanand Argentic Services Company LP as special servicer of the Macedonia CommonsMortgage Loan, listed on the Exhibit Index are omitted from this Annual Reporton Form 10-K as they are not required by Item 1123 of Regulation AB to beincluded on this Annual Report on Form 10-K because they are each anunaffiliated party that is not a “servicer” that meets the criteria in Item1108(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. **

[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 entities fileda complaint in the United States District Court for the Southern District ofNew 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 investorsand an 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 October 18, 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 such assessmentsof compliance with respect to the Del Amo Fashion Center Mortgage Loan, whichis being serviced and administered pursuant to the trust and servicingagreement for the DAFC 2017-AMO Transaction, are attached hereto under Item 15to this Annual Report on Form 10-K. Attached as Exhibit L to the trust andservicing agreement for the DAFC 2017-AMO Transaction incorporated by referenceas Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying theentities participating in a servicing function for the DAFC 2017-AMOTransaction responsible for each applicable servicing criteria set forth inItem 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on such assessmentsof compliance with respect to the Park West Village Mortgage Loan and the TZAMultifamily Portfolio I Mortgage Loan, which are being serviced andadministered 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 237 Park Avenue Mortgage Loan,which is being serviced and administered pursuant to the trust and servicingagreement for the MSSG Trust 2017-237P Transaction, are attached hereto underItem 15 to this Annual Report on Form 10-K. Attached as Exhibit L to the trustand servicing agreement for the MSSG Trust 2017-237P Transaction incorporatedby reference as Exhibit 4.5 to this Annual Report on Form 10-K is a chart identifyingthe entities participating in a servicing function for the MSSG Trust 2017-237PTransaction responsible for each applicable servicing criteria set forth inItem 1122(d).

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the JW Marriott Chicago MortgageLoan, which is being serviced and administered pursuant to the pooling andservicing agreement for the CSAIL 2017-CX9 Transaction, are attached heretounder Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to thepooling and servicing agreement for the CSAIL 2017-CX9 Transaction incorporatedby reference as Exhibit 4.6 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the CSAIL2017-CX9 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 50 Varick Street Mortgage Loan,which is being serviced and administered pursuant to the pooling and servicingagreement for the UBS 2017-C5 Transaction, are attached hereto under Item 15 tothis Annual Report on Form 10-K. Attached as Exhibit Z to the pooling andservicing agreement for the UBS 2017-C5 Transaction incorporated by referenceas Exhibit 4.7 to this Annual Report on Form 10-K is a chart identifying theentities participating in a servicing function for the UBS 2017-C5 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 Macedonia Commons Mortgage Loan,which is being serviced and administered pursuant to the pooling and servicingagreement for the WFCM 2017-C41 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 WFCM 2017-C41 Transaction incorporated by referenceas Exhibit 4.8 to this Annual Report on Form 10-K is a chart identifying theentities participating in a servicing function for the WFCM 2017-C41Transaction responsible for each applicable servicing criteria set forth inItem 1122(d).

The report on assessment of compliance for the twelvemonths ended December 31, 2022, furnished pursuant to Item 1122 of RegulationAB by 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 loan mortgagors were offered loan rates within 45-60 daysbefore the rate change date, as required per the related pool asset documents.Per the related note, if the holder fails to offer a loan rate within 45-60days of any change date a margin of 2.25% is to be used. Given the notificationwas not made to the borrowers, a 3% margin was incorrectly applied. Thenoncompliance in Item 1122 (d)(4)(ix) is related to a servicing portfolio whichis wholly owned by the investor 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 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/A filed on November 22, 2017 under Commission FileNo. 333-207340-04 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., as Depositor,Wells Fargo Bank, National Association, as Servicer, AEGON USA Realty Advisors,LLC, as Special Servicer, Wells Fargo Bank, National Association, asCertificate Administrator, Wilmington Trust, National Association, as Trustee,and Trimont Real Estate Advisors, LLC, as Operating Advisor (filed as Exhibit4.4 to the registrant’s Current Report on Form 8-K filed on October 18, 2017under Commission File No. 333-207340-04 and incorporated 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 4.6 to the registrant’sCurrent Report on Form 8-K filed on October 18, 2017 under Commission File No.333-207340-04 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 October 18, 2017under Commission File No. 333-207340-04 and incorporated by reference herein).

4.5          Trust and Servicing Agreement, dated as of August 9,2017, by and among Morgan Stanley Capital I Inc., as Depositor, Wells FargoBank, National Association, as Servicer, Wells Fargo Bank, NationalAssociation, as Special Servicer, Wilmington Trust, National Association, asTrustee, Wells Fargo Bank, National Association, as Certificate Administratorand Custodian, and Park Bridge Lender Services LLC, as Operating Advisor (filedas Exhibit 4.2 to the registrant’s Current Report on Form 8-K filed on October18, 2017 under Commission File No. 333-207340-04 and incorporated by referenceherein).

4.6          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 4.5to the registrant’s Current Report on Form 8-K filed on October 18, 2017 underCommission File No. 333-207340-04 and incorporated by reference herein).

4.7          Pooling and Servicing Agreement, dated as of November 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, as Cayman Agent and as Trustee, and Park BridgeLender Services LLC, as Operating Advisor and as Asset Representations Reviewer(filed as Exhibit 4.1 to the registrant’s Current Report on Form 8-K/A filed onDecember 5, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein).

4.8          Pooling and Servicing Agreement, dated as of November 1,2017, by and among Wells Fargo Commercial Mortgage Securities, 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 Trimont Real Estate Advisors, LLC, as Operating Advisor and as AssetRepresentations Reviewer (filed as Exhibit 4.1 to the registrant’s CurrentReport on Form 8-K filed on December 5, 2017 under Commission File No.333-207340-04 and incorporated by reference herein).

4.9          Agreement Between Note Holders, dated as of August 23,2017, by and between Morgan Stanley Bank, N.A., as Initial Note A-1 Holder andInitial Note B-1 Holder, and Société Générale, as Initial Note A-2 Holder andInitial Note B-2 Holder (filed as Exhibit 4.7 to the registrant’s CurrentReport on Form 8-K filed on October 18, 2017 under Commission File No.333-207340-04 and incorporated by reference herein).

4.10         Agreement Among Noteholders, dated as of July 19, 2017, byand 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 4.8 to the registrant’s Current Report on Form 8-K filed on October18, 2017 under Commission File No. 333-207340-04 and incorporated by reference herein).

4.11         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 4.9 to the registrant’s Current Report on Form 8-K filed onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein).

4.12         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 BankPLC (filed as Exhibit 4.10 to the registrant’s Current Report on Form 8-K filedon October 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein).

4.13         Amended and Restated Agreement Among Noteholders, datedas of August 17, 2017, by and among UBS AG, by and through its branch office at1285 Avenue of the Americas, New York, New York, as Initial Note A-1 Holder andInitial Note A-2 Holder, and Townsend Real Estate Fund, L.P., as JuniorNoteholder (filed as Exhibit 4.11 to the registrant’s Current Report on Form8-K filed on October 18, 2017 under Commission File No. 333-207340-04 and incorporatedby reference herein).

4.14         Co-Lender Agreement, dated as of October 18, 2017,between Ladder Capital Finance LLC, as Note A-1 Holder, and Ladder CapitalFinance LLC, as Note A-2 Holder, and Ladder Capital Finance LLC, as Note A-3Holder (filed as Exhibit 4.12 to the registrant’s Current Report on Form 8-Kfiled on October 18, 2017 under Commission File No. 333-207340-04 and incorporatedby reference herein).

4.15         Agreement Between Note Holders, dated as of October 18,2017, 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, and UBS AG, by and through its branch office at1285 Avenue of the Americas, New York, New York, as Initial Note A-3 Holder(filed as Exhibit 4.13 to the registrant’s Current Report on Form 8-K filed onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein).

4.16         Co-Lender Agreement, dated as of October 18, 2017,between Ladder Capital Finance LLC, as Note A-1 Holder, and Ladder Capital FinanceLLC, as Note A-2 Holder (filed as Exhibit 4.14 to the registrant’s CurrentReport on Form 8-K filed on October 18, 2017 under Commission File No.333-207340-04 and incorporated by reference herein).

4.17         Co-Lender Agreement, dated as of October 18, 2017,between Ladder Capital Finance LLC, as Note A-1 Holder, and Ladder CapitalFinance LLC, as Note A-2 Holder (filed as Exhibit 4.15 to the registrant’sCurrent Report on Form 8-K filed on October 18, 2017 under Commission File No.333-207340-04 and incorporated by reference herein).

4.18         Agreement Between Note Holders, dated as of October 18,2017, by and between UBS AG, by and through its branch office at 1285 Avenue ofthe Americas, New York, New York, as Initial Note A-1-1 Holder, Initial NoteA-1-2 Holder and Initial Note A-1-3 Holder, and Argentic Real Estate FinanceLLC, as Initial Note A-2 Holder (filed as Exhibit 4.16 to the registrant’sCurrent Report on Form 8-K filed on October 18, 2017 under Commission File No.333-207340-04 and incorporated by reference herein).

4.19         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 4.17 to the registrant’s Current Report on Form 8-K filed onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein).

4.20         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 4.18to the registrant’s Current Report on Form 8-K filed on October 18, 2017 underCommission File No. 333-207340-04 and incorporated by reference herein).

4.21         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 4.19 to the registrant’s Current Report on Form 8-K filed on October18, 2017 under Commission File No. 333-207340-04 and incorporated by referenceherein).

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

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

33.1        Wells Fargo Bank, National Association, as MasterServicer

33.2        Rialto Capital Advisors, LLC, as Special Servicer

33.3         Situs Holdings, LLC, as Special Servicer of theFairmount at Brewerytown Mortgage Loan

33.4        Wilmington Trust, National Association, as Trustee (Omitted. See ExplanatoryNotes.)

33.5        Wells Fargo Bank, National Association, asCertificate Administrator

33.6        Wells Fargo Bank, National Association, asCustodian

33.7        Pentalpha Surveillance LLC, as Operating Advisor

33.8        CoreLogic Solutions, LLC, as Servicing FunctionParticipant

33.9        Computershare Trust Company, National Association,as Servicing Function Participant for the Certificate Administrator

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

33.11      Wells Fargo Bank, National Association, as Primary Servicerof The District Mortgage Loan (see Exhibit 33.1)

33.12      Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 33.2)

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

33.14      Wells Fargo Bank, National Association, asCustodian of The District Mortgage Loan (see Exhibit 33.6)

33.15      Pentalpha Surveillance LLC, as Operating Advisor ofThe District Mortgage Loan (see Exhibit 33.7)

33.16      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of The District Mortgage Loan (see Exhibit 33.8)

33.17       Computershare Trust Company, National Association, asServicing Function Participant for the Custodian (see Exhibit 33.10)

33.18      Wells Fargo Bank, National Association, as PrimaryServicer of the Meridian Sunrise Village Mortgage Loan (see Exhibit 33.1)

33.19      Rialto Capital Advisors, LLC, as Special Servicerof the Meridian Sunrise Village Mortgage Loan (see Exhibit 33.2)

33.20      Wilmington Trust, National Association, as Trustee of the Meridian SunriseVillage Mortgage Loan (Omitted. See Explanatory Notes.)

33.21      Wells Fargo Bank, National Association, as Custodianof the Meridian Sunrise Village Mortgage Loan (see Exhibit 33.6)

33.22      Pentalpha Surveillance LLC, as Operating Advisor ofthe Meridian Sunrise Village Mortgage Loan (see Exhibit 33.7)

33.23      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Meridian Sunrise Village Mortgage Loan (see Exhibit 33.8)

33.24      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.25      Wells Fargo Bank, National Association, as PrimaryServicer of the Bank of America Office Campus Building 600 Mortgage Loan (seeExhibit 33.1)

33.26      Rialto Capital Advisors, LLC, as Special Servicerof the Bank of America Office Campus Building 600 Mortgage Loan (see Exhibit33.2)

33.27      Wilmington Trust, National Association, as Trustee of the Bank of AmericaOffice Campus Building 600 Mortgage Loan (Omitted. See Explanatory Notes.)

33.28      Wells Fargo Bank, National Association, asCustodian of the Bank of America Office Campus Building 600 Mortgage Loan (seeExhibit 33.6)

33.29      Pentalpha Surveillance LLC, as Operating Advisor ofthe Bank of America Office Campus Building 600 Mortgage Loan (see Exhibit 33.7)

33.30      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Bank of America Office Campus Building 600 Mortgage Loan(see Exhibit 33.8)

33.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.32      Wells Fargo Bank, National Association, as PrimaryServicer of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 33.1)

33.33      Rialto Capital Advisors, LLC, as Special Servicerof the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 33.2)

33.34      Wilmington Trust, National Association, as Trustee of the DoubleTree BerkeleyMarina Mortgage Loan (Omitted. See Explanatory Notes.)

33.35      Wells Fargo Bank, National Association, asCustodian of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 33.6)

33.36      Pentalpha Surveillance LLC, as Operating Advisor ofthe DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 33.7)

33.37      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 33.8)

33.38      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.39      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan (see Exhibit 33.1)

33.40      Situs Holdings, LLC, as Special Servicer of the 245Park Avenue Mortgage Loan (see Exhibit 33.3)

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

33.42      Wells Fargo Bank, National Association, as Custodianof the 245 Park Avenue Mortgage Loan (see Exhibit 33.6)

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

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

33.45      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 245 Park Avenue Mortgage Loan (see Exhibit 33.8)

33.46      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.47      KeyBank National Association, as Primary Servicer of the Del Amo Fashion CenterMortgage Loan (Omitted. See Explanatory Notes.) 

33.48      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 33.3)

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

33.50      Wells Fargo Bank, National Association, asCustodian of the Del Amo Fashion Center Mortgage Loan (see Exhibit 33.6)

33.51      Park Bridge Lender Services LLC, as OperatingAdvisor of the Del Amo Fashion Center Mortgage Loan

33.52      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.53      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Park West Village MortgageLoan

33.54      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Park West Village MortgageLoan (see Exhibit 33.53)

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

33.56      Wells Fargo Bank, National Association, asCustodian of the Park West Village Mortgage Loan (see Exhibit 33.6)

33.57      Park Bridge Lender Services LLC, as OperatingAdvisor of the Park West Village Mortgage Loan (see Exhibit 33.51)

33.58      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.59      Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Primary Servicer of the TZA Multifamily Portfolio I MortgageLoan (see Exhibit 33.53)

33.60      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 33.53)

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

33.62      Wells Fargo Bank, National Association, asCustodian of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 33.6)

33.63      Park Bridge Lender Services LLC, as OperatingAdvisor of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 33.51)

33.64      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.65      Wells Fargo Bank, National Association, as PrimaryServicer of the 237 Park Avenue Mortgage Loan (see Exhibit 33.1)

33.66      Wells Fargo Bank, National Association, as SpecialServicer of the 237 Park Avenue Mortgage Loan (see Exhibit 33.1)

33.67      Wilmington Trust, National Association, as Trustee of the 237 Park AvenueMortgage Loan (Omitted. See Explanatory Notes.)

33.68      Wells Fargo Bank, National Association, asCustodian of the 237 Park Avenue Mortgage Loan (see Exhibit 33.6)

33.69      Park Bridge Lender Services LLC, as OperatingAdvisor of the 237 Park Avenue Mortgage Loan (see Exhibit 33.51)

33.70      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 237 Park Avenue Mortgage Loan (see Exhibit 33.8)

33.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.72      KeyBank National Association, as Primary Servicer of the JW Marriott ChicagoMortgage Loan (Omitted. See Explanatory Notes.) 

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

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

33.75      Wells Fargo Bank, National Association, asCustodian of the JW Marriott Chicago Mortgage Loan (see Exhibit 33.6)

33.76      Pentalpha Surveillance LLC, as Operating Advisor ofthe JW Marriott Chicago Mortgage Loan (see Exhibit 33.7)

33.77      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.78      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the 50 Varick Street Mortgage Loan(see Exhibit 33.53)

33.79      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the 50 Varick Street Mortgage Loan(see Exhibit 33.53)

33.80      Wells Fargo Bank, National Association, as Trustee of the 50 Varick StreetMortgage Loan (Omitted. See Explanatory Notes.)

33.81      Wells Fargo Bank, National Association, asCustodian of the 50 Varick Street Mortgage Loan (see Exhibit 33.6)

33.82      Park Bridge Lender Services LLC, as OperatingAdvisor of the 50 Varick Street Mortgage Loan (see Exhibit 33.51)

33.83      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.84      Wells Fargo Bank, National Association, as PrimaryServicer of the Macedonia Commons Mortgage Loan (see Exhibit 33.1)

33.85      Argentic Services Company LP, as Special Servicer of the Macedonia CommonsMortgage Loan (Omitted. See Explanatory Notes.)

33.86      Wilmington Trust, National Association, as Trustee of the Macedonia CommonsMortgage Loan (Omitted. See Explanatory Notes.)

33.87      Wells Fargo Bank, National Association, asCustodian of the Macedonia Commons Mortgage Loan (see Exhibit 33.6)

33.88      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the Macedonia Commons Mortgage Loan prior to December 14, 2022 (seeExhibit 33.43)

33.89      BellOak, LLC, as Operating Advisor of the Macedonia Commons Mortgage Loan onand after December 14, 2022 (Omitted. See Explanatory Notes.)

33.90      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Macedonia Commons Mortgage Loan (see Exhibit 33.8)

33.91      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.10)

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

34.1        Wells Fargo Bank, National Association, as MasterServicer

34.2        Rialto Capital Advisors, LLC, as Special Servicer

34.3        Situs Holdings, LLC, as Special Servicer of theFairmount at Brewerytown Mortgage Loan

34.4        Wilmington Trust, National Association, as Trustee (Omitted. See ExplanatoryNotes.)

34.5        Wells Fargo Bank, National Association, asCertificate Administrator

34.6        Wells Fargo Bank, National Association, asCustodian

34.7        Pentalpha Surveillance LLC, as Operating Advisor

34.8        CoreLogic Solutions, LLC, as Servicing FunctionParticipant

34.9        Computershare Trust Company, National Association,as Servicing Function Participant for the Certificate Administrator

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

34.11      Wells Fargo Bank, National Association, as PrimaryServicer of The District Mortgage Loan (see Exhibit 34.1)

34.12      Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 34.2)

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

34.14      Wells Fargo Bank, National Association, asCustodian of The District Mortgage Loan (see Exhibit 34.6)

34.15      Pentalpha Surveillance LLC, as Operating Advisor ofThe District Mortgage Loan (see Exhibit 34.7)

34.16      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of The District Mortgage Loan (see Exhibit 34.8)

34.17      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.18      Wells Fargo Bank, National Association, as PrimaryServicer of the Meridian Sunrise Village Mortgage Loan (see Exhibit 34.1)

34.19      Rialto Capital Advisors, LLC, as Special Servicer ofthe Meridian Sunrise Village Mortgage Loan (see Exhibit 34.2)

34.20      Wilmington Trust, National Association, as Trustee of the Meridian SunriseVillage Mortgage Loan (Omitted. See Explanatory Notes.)

34.21      Wells Fargo Bank, National Association, asCustodian of the Meridian Sunrise Village Mortgage Loan (see Exhibit 34.6)

34.22      Pentalpha Surveillance LLC, as Operating Advisor ofthe Meridian Sunrise Village Mortgage Loan (see Exhibit 34.7)

34.23      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Meridian Sunrise Village Mortgage Loan (see Exhibit 34.8)

34.24      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.25      Wells Fargo Bank, National Association, as PrimaryServicer of the Bank of America Office Campus Building 600 Mortgage Loan (seeExhibit 34.1)

34.26      Rialto Capital Advisors, LLC, as Special Servicerof the Bank of America Office Campus Building 600 Mortgage Loan (see Exhibit34.2)

34.27      Wilmington Trust, National Association, as Trustee of the Bank of AmericaOffice Campus Building 600 Mortgage Loan (Omitted. See Explanatory Notes.)

34.28      Wells Fargo Bank, National Association, asCustodian of the Bank of America Office Campus Building 600 Mortgage Loan (seeExhibit 34.6)

34.29      Pentalpha Surveillance LLC, as Operating Advisor ofthe Bank of America Office Campus Building 600 Mortgage Loan (see Exhibit 34.7)

34.30      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the Bank of America Office Campus Building 600 Mortgage Loan(see Exhibit 34.8)

34.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.32      Wells Fargo Bank, National Association, as PrimaryServicer of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 34.1)

34.33      Rialto Capital Advisors, LLC, as Special Servicerof the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 34.2)

34.34      Wilmington Trust, National Association, as Trustee of the DoubleTree Berkeley MarinaMortgage Loan (Omitted. See Explanatory Notes.)

34.35      Wells Fargo Bank, National Association, asCustodian of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 34.6)

34.36      Pentalpha Surveillance LLC, as Operating Advisor ofthe DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 34.7)

34.37      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 34.8)

34.38      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.39      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan (see Exhibit 34.1)

34.40      Situs Holdings, LLC, as Special Servicer of the 245Park Avenue Mortgage Loan (see Exhibit 34.3)

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

34.42      Wells Fargo Bank, National Association, asCustodian of the 245 Park Avenue Mortgage Loan (see Exhibit 34.6)

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

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

34.45      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 245 Park Avenue Mortgage Loan (see Exhibit 34.8)

34.46      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.47      KeyBank National Association, as Primary Servicer of the Del Amo Fashion CenterMortgage Loan (Omitted. See Explanatory Notes.) 

34.48      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 34.3)

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

34.50      Wells Fargo Bank, National Association, asCustodian of the Del Amo Fashion Center Mortgage Loan (see Exhibit 34.6)

34.51      Park Bridge Lender Services LLC, as OperatingAdvisor of the Del Amo Fashion Center Mortgage Loan

34.52      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.53      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Park West Village MortgageLoan

34.54      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the Park West Village MortgageLoan (see Exhibit 34.53)

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

34.56      Wells Fargo Bank, National Association, asCustodian of the Park West Village Mortgage Loan (see Exhibit 34.6)

34.57      Park Bridge Lender Services LLC, as OperatingAdvisor of the Park West Village Mortgage Loan (see Exhibit 34.51)

34.58      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.59      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 34.53)

34.60      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of the TZA Multifamily Portfolio IMortgage Loan (see Exhibit 34.53)

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

34.62      Wells Fargo Bank, National Association, asCustodian of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 34.6)

34.63      Park Bridge Lender Services LLC, as OperatingAdvisor of the TZA Multifamily Portfolio I Mortgage Loan (see Exhibit 34.51)

34.64      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.65      Wells Fargo Bank, National Association, as PrimaryServicer of the 237 Park Avenue Mortgage Loan (see Exhibit 34.1)

34.66      Wells Fargo Bank, National Association, as Special Servicerof the 237 Park Avenue Mortgage Loan (see Exhibit 34.1)

34.67      Wilmington Trust, National Association, as Trustee of the 237 Park AvenueMortgage Loan (Omitted. See Explanatory Notes.)

34.68      Wells Fargo Bank, National Association, asCustodian of the 237 Park Avenue Mortgage Loan (see Exhibit 34.6)

34.69      Park Bridge Lender Services LLC, as OperatingAdvisor of the 237 Park Avenue Mortgage Loan (see Exhibit 34.51)

34.70      CoreLogic Solutions, LLC, as Servicing FunctionParticipant of the 237 Park Avenue Mortgage Loan (see Exhibit 34.8)

34.71      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.72      KeyBank National Association, as Primary Servicer of the JW Marriott ChicagoMortgage Loan (Omitted. See Explanatory Notes.) 

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

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

34.75      Wells Fargo Bank, National Association, asCustodian of the JW Marriott Chicago Mortgage Loan (see Exhibit 34.6)

34.76      Pentalpha Surveillance LLC, as Operating Advisor ofthe JW Marriott Chicago Mortgage Loan (see Exhibit 34.7)

34.77      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.78      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the 50 Varick Street Mortgage Loan(see Exhibit 34.53)

34.79      Midland Loan Services, a Division of PNC Bank, NationalAssociation, as Special Servicer of the 50 Varick Street Mortgage Loan (seeExhibit 34.53)

34.80      Wells Fargo Bank, National Association, as Trustee of the 50 Varick StreetMortgage Loan (Omitted. See Explanatory Notes.)

34.81      Wells Fargo Bank, National Association, asCustodian of the 50 Varick Street Mortgage Loan (see Exhibit 34.6)

34.82      Park Bridge Lender Services LLC, as OperatingAdvisor of the 50 Varick Street Mortgage Loan (see Exhibit 34.51)

34.83      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.84      Wells Fargo Bank, National Association, as PrimaryServicer of the Macedonia Commons Mortgage Loan (see Exhibit 34.1)

34.85      Argentic Services Company LP, as Special Servicer of the Macedonia CommonsMortgage Loan (Omitted. See Explanatory Notes.)

34.86      Wilmington Trust, National Association, as Trustee of the Macedonia CommonsMortgage Loan (Omitted. See Explanatory Notes.)

34.87      Wells Fargo Bank, National Association, asCustodian of the Macedonia Commons Mortgage Loan (see Exhibit 34.6)

34.88      Trimont Real Estate Advisors, LLC, as OperatingAdvisor of the Macedonia Commons Mortgage Loan prior to December 14, 2022 (seeExhibit 34.43)

34.89      BellOak, LLC, as Operating Advisor of the Macedonia Commons Mortgage Loan onand after December 14, 2022 (Omitted. See Explanatory Notes.)

34.90      CoreLogic Solutions, LLC, as Servicing Function Participantof the Macedonia Commons Mortgage Loan (see Exhibit 34.8)

34.91      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.10)

35           Servicer compliance statements.

35.1        Wells Fargo Bank, National Association, as MasterServicer

35.2        Rialto Capital Advisors, LLC, as Special Servicer

35.3        Situs Holdings, LLC, as Special Servicer of the Fairmount at BrewerytownMortgage Loan (Omitted. See Explanatory Notes.)

35.4        Wells Fargo Bank, National Association, asCertificate Administrator

35.5        Computershare Trust Company, National Association,as Servicing Function Participant for the Certificate Administrator

35.6        Wells Fargo Bank, National Association, as PrimaryServicer of The District Mortgage Loan (see Exhibit 35.1)

35.7        Rialto Capital Advisors, LLC, as Special Servicerof The District Mortgage Loan (see Exhibit 35.2)

35.8        Wells Fargo Bank, National Association, as PrimaryServicer of the Meridian Sunrise Village Mortgage Loan (see Exhibit 35.1)

35.9        Rialto Capital Advisors, LLC, as Special Servicerof the Meridian Sunrise Village Mortgage Loan (see Exhibit 35.2)

35.10      Wells Fargo Bank, National Association, as PrimaryServicer of the Bank of America Office Campus Building 600 Mortgage Loan (seeExhibit 35.1)

35.11      Rialto Capital Advisors, LLC, as Special Servicerof the Bank of America Office Campus Building 600 Mortgage Loan (see Exhibit35.2)

35.12      Wells Fargo Bank, National Association, as PrimaryServicer of the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 35.1)

35.13      Rialto Capital Advisors, LLC, as Special Servicerof the DoubleTree Berkeley Marina Mortgage Loan (see Exhibit 35.2)

35.14      Wells Fargo Bank, National Association, as PrimaryServicer of the 245 Park Avenue Mortgage Loan (see Exhibit 35.1)

35.15      Situs Holdings, LLC, as Special Servicer of the 245 Park Avenue Mortgage Loan(Omitted. See Explanatory Notes.)

35.16      KeyBank National Association, as Primary Servicer of the Del Amo Fashion CenterMortgage Loan (Omitted. See Explanatory Notes.) 

35.17      Situs Holdings, LLC, successor to Cohen Financial, a Division of Truist Bank,successor by merger to SunTrust Bank, as Special Servicer of the Del AmoFashion Center Mortgage Loan (Omitted. See Explanatory Notes.)

35.18      Midland Loan Services, a Division of PNC Bank, National Association, as PrimaryServicer of the Park West Village Mortgage Loan (Omitted. See ExplanatoryNotes.) 

35.19      Midland Loan Services, a Division of PNC Bank, National Association, as SpecialServicer of the Park West Village Mortgage Loan (Omitted. See ExplanatoryNotes.)

35.20      Midland Loan Services, a Division of PNC Bank, National Association, as PrimaryServicer of the TZA Multifamily Portfolio I Mortgage Loan (Omitted. SeeExplanatory Notes.) 

35.21      Midland Loan Services, a Division of PNC Bank, National Association, as SpecialServicer of the TZA Multifamily Portfolio I Mortgage Loan (Omitted. SeeExplanatory Notes.)

35.22      Wells Fargo Bank, National Association, as PrimaryServicer of the 237 Park Avenue Mortgage Loan (see Exhibit 35.1)

35.23      Wells Fargo Bank, National Association, as SpecialServicer of the 237 Park Avenue Mortgage Loan (see Exhibit 35.1)

35.24      KeyBank National Association, as Primary Servicer of the JW Marriott ChicagoMortgage Loan (Omitted. See Explanatory Notes.) 

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

35.26      Midland Loan Services, a Division of PNC Bank, National Association, as PrimaryServicer of the 50 Varick Street Mortgage Loan (Omitted. See ExplanatoryNotes.) 

35.27      Midland Loan Services, a Division of PNC Bank, National Association, as SpecialServicer of the 50 Varick Street Mortgage Loan (Omitted. See ExplanatoryNotes.)

35.28      Wells Fargo Bank, National Association, as PrimaryServicer of the Macedonia Commons Mortgage Loan (see Exhibit 35.1)

35.29      Argentic Services Company LP, as Special Servicer of the Macedonia CommonsMortgage Loan (Omitted. See Explanatory Notes.)

99.1         Mortgage Loan Purchase Agreement, dated as of September29, 2017, between UBS AG, by and through its branch office at 1285 Avenue ofthe Americas, New York, New York and UBS Commercial Mortgage SecuritizationCorp. (filed as Exhibit 99.1 to the registrant’s Current Report on Form 8-Kfiled on October 18, 2017 under Commission File No. 333-207340-04 and incorporatedby reference herein)

99.2         Mortgage Loan Purchase Agreement, dated as of September 29,2017, 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 onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein)

99.3         Mortgage Loan Purchase Agreement, dated as of September29, 2017, between Ladder Capital Finance LLC, Ladder Capital Finance HoldingsLLLP, Series REIT of Ladder Capital Finance Holdings LLLP, Series TRS of LadderCapital Finance Holdings LLLP and UBS Commercial Mortgage Securitization Corp.(filed as Exhibit 99.3 to the registrant’s Current Report on Form 8-K filed onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein)

99.4         Mortgage Loan Purchase Agreement, dated as of September29, 2017, between Rialto Mortgage Finance, LLC and UBS Commercial MortgageSecuritization Corp. (filed as Exhibit 99.4 to the registrant’s Current Reporton Form 8-K filed on October 18, 2017 under Commission File No. 333-207340-04and incorporated by reference herein)

99.5         Mortgage Loan Purchase Agreement, dated as of September29, 2017, between CIBC Inc. and UBS Commercial Mortgage Securitization Corp.(filed as Exhibit 99.5 to the registrant’s Current Report on Form 8-K filed onOctober 18, 2017 under Commission File No. 333-207340-04 and incorporated byreference herein)

99.6         Mortgage Loan Purchase Agreement, dated as of September29, 2017, between Natixis Real Estate Capital LLC and UBS Commercial MortgageSecuritization Corp. (filed as Exhibit 99.6 to the registrant’s Current Reporton Form 8-K filed on October 18, 2017 under Commission File No. 333-207340-04and 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/ NicholasGaleone

NicholasGaleone, President

(senior officer in charge ofsecuritization of the depositor)

Date: March 10, 2023

/s/ AndrewLisa

Andrew Lisa, Director

Date: March 10, 2023