**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, 2023or**

**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: 333-227081-05**

**Central Index Key Number of the issuing entity:0001803702**

**CSAIL 2020-C19 Commercial MortgageTrust**

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

** **

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

**Credit Suisse Commercial MortgageSecurities Corp.**

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

** **

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

**Column Financial, Inc.**

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

** **

**Central Index Key Number of the sponsor: 0001767304**

**3650 REIT Loan Funding 1 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)** | **38-4139300**

**38-4139301**

**38-7250366**

**(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) 272-6858**

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

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

 

 

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

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

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

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

Indicate by check mark whether the registrant has submittedelectronically 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                                                                                                       Accelerated filer                                     o

Non-acceleratedfiler          ⌧                                                                                                     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 by referenceand the Part of the Form 10-K (e.g., Part I, Part II, etc.) into which thedocument is incorporated: (1) Any annual report to security holders; (2) Anyproxy or information statement; and (3) Any prospectus filed pursuant to Rule424(b) or (c) under the Securities Act of 1933. The listed documents should beclearly described for identification purposes (e.g., annual report to securityholders for fiscal year ended December 24, 1980).

Notapplicable.

 

** **

**EXPLANATORY NOTES**

The KPMG Plaza at Hall Arts Mortgage Loan andthe Sol y Luna Mortgage Loan, which constituted approximately 8.2% and 6.0%,respectively, of the asset pool of the issuing entity as of its cut-off date,are each an asset of the issuing entity and are each part of a loan combinationthat includes (a) with respect to the KPMG Plaza at Hall Arts Mortgage Loan,one other *pari passu* loan, which is not an asset of the issuing entityand (b) with respect to the Sol y Luna Mortgage Loan, three other *pari passu*loans and one subordinate companion loan, each of which are not assets of theissuing entity. These loan combinations, including the KPMG Plaza at Hall ArtsMortgage Loan and the Sol y Luna Mortgage Loan, are being serviced andadministered pursuant to the Pooling and Servicing Agreement, which isincorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K. 

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the Selig Office Portfolio Mortgage Loan, theRenaissance Plano Mortgage Loan and the APX Morristown Mortgage Loan, whichconstituted approximately 7.2%, 5.4% and 3.1%, respectively, of the asset poolof the issuing entity as of its cut-off date.  The Selig Office PortfolioMortgage Loan, the Renaissance Plano Mortgage Loan and the APX MorristownMortgage Loan are each an asset of the issuing entity and are each part of aloan combination that includes the Selig Office Portfolio Mortgage Loan, theRenaissance Plano Mortgage Loan or the APX Morristown Mortgage Loan and oneother *pari passu* loan, each of which is not an asset of the issuingentity. The other *pari passu* portion of each loan combination wassecuritized in the CSAIL 2019-C17 Commercial Mortgage Trust transaction,Commission File Number 333-227081-03 (the “CSAIL 2019-C17 Transaction”).These loan combinations, including the Selig Office Portfolio Mortgage Loan,the Renaissance Plano Mortgage Loan and the APX Morristown Mortgage Loan, arebeing serviced and administered pursuant to the pooling and servicing agreementfor the CSAIL 2019-C17 Transaction, which is incorporated by reference asExhibit 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 University Village Mortgage Loan, whichconstituted approximately 5.4% of the asset pool of the issuing entity as ofits cut-off date.  The University Village Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the UniversityVillage Mortgage Loan, two other *pari passu* loans and one subordinatecompanion loan, which are not assets of the issuing entity. A *pari passu*portion of the loan combination was securitized in the CSMC 2019-UVILtransaction (the “CSMC 2019-UVIL Transaction”). This loan combination,including the University Village Mortgage Loan, is being serviced andadministered pursuant to the trust and servicing agreement for the CSMC 2019-UVILTransaction, which is incorporated by reference as Exhibit 4.3 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 Westchester Mortgage Loan, which constitutedapproximately 6.0% of the asset pool of the issuing entity as of its cut-offdate.  The Westchester Mortgage Loan is an asset of the issuing entity andis part of a loan combination that includes The Westchester Mortgage Loan,three other *pari passu* loans and one subordinate companion loan, whichare not assets of the issuing entity. A *pari passu* portion of the loancombination was securitized in the CSMC 2020-WEST transaction (the “CSMC2020-WEST Transaction”). This loan combination, including The WestchesterMortgage Loan, is being serviced and administered pursuant to the trust andservicing agreement for the CSMC 2020-WEST Transaction, which is incorporatedby reference as Exhibit 4.4 to this Annual Report on Form 10-K.

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

Midland Loan Services, a Divisionof PNC Bank, National Association is the master servicer of the mortgage loansserviced under the Pooling and Servicing Agreement, the primary servicer of theSelig Office Portfolio Mortgage Loan, The Westchester Mortgage Loan, theUniversity Village Mortgage Loan, the Renaissance Plano Mortgage Loan and theAPX Morristown Mortgage Loan, and the special servicer of The WestchesterMortgage Loan. As a result, Midland Loan Services, a Division of PNC Bank, NationalAssociation is a “servicer” as defined in Item 1108(a)(2)(iii) of RegulationAB, in the capacities described above, because it is servicing mortgage loansthat constituted 10% or more of the assets of the issuing entity as of itscut-off date. The assessments of compliance with applicable servicing criteria,accountants’ attestation reports and servicer compliance statements deliveredby Midland Loan Services, a Division of PNC Bank, National Association in thecapacities described above are listed in the Exhibit Index.

3650 REIT Loan Servicing LLC isthe special servicer of the mortgage loans serviced under the Pooling andServicing Agreement, the Selig Office Portfolio Mortgage Loan, the RenaissancePlano Mortgage Loan and the APX Morristown Mortgage Loan. As a result, 3650REIT Loan Servicing LLC is a “servicer” as defined in Item 1108(a)(2)(iii) ofRegulation 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 3650 REIT Loan Servicing LLC 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 Selig Office Portfolio Mortgage Loan, TheWestchester Mortgage Loan, the University Village Mortgage Loan, the RenaissancePlano Mortgage Loan and the APX Morristown Mortgage Loan.  As a result,Wells Fargo Bank, National Association is a servicing function participant inthe capacities 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 Wells Fargo Bank, NationalAssociation in the capacities described above are listed in the Exhibit Index.

Park Bridge Lender Services LLC isthe operating advisor of the mortgage loans serviced under the Pooling andServicing Agreement, the Selig Office Portfolio Mortgage Loan, the UniversityVillage Mortgage Loan, the Renaissance Plano Mortgage Loan and the APXMorristown Mortgage Loan.  As a result, Park Bridge Lender Services LLC isa servicing function participant in the capacities described above, because itis servicing mortgage loans that constituted 5% or more of the assets of theissuing entity as of its cut-off date. The assessments of compliance withapplicable servicing criteria and accountants’ attestation reports delivered byPark Bridge Lender Services LLC in the capacities described above are listed inthe Exhibit Index.

Wells Fargo Bank, NationalAssociation acts as trustee of the KPMG Plaza at Hall Arts Mortgage Loan, theSol y Luna Mortgage Loan, the Selig Office Portfolio Mortgage Loan, theRenaissance Plano Mortgage Loan, the APX Morristown Mortgage Loan, the UniversityVillage Mortgage Loan and The Westchester Mortgage Loan.  Pursuant to thePooling and Servicing Agreement, the pooling and servicing agreement for theCSAIL 2019-C17 Transaction, the trust and servicing agreement for the CSMC2019-UVIL Transaction and the trust and servicing agreement for the CSMC2020-WEST 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 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 servicers ofthe KPMG Plaza at Hall Arts Mortgage Loan, the Sol y Luna Mortgage Loan, theSelig Office Portfolio Mortgage Loan, the Renaissance Plano Mortgage Loan, theAPX Morristown Mortgage Loan, the University Village Mortgage Loan and TheWestchester Mortgage Loan have delivered one or more assessments of compliancewith respect to Item 1122(d)(2)(iii) of Regulation AB.

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

Theassessments of compliance with applicable servicing criteria, accountants’attestation reports and servicer compliance statements of the certificateadministrator of the Selig Office Portfolio Mortgage Loan, the RenaissancePlano Mortgage Loan, the APX Morristown Mortgage Loan, the University VillageMortgage Loan and The Westchester Mortgage Loan are omitted from this AnnualReport on Form 10-K as the certificate administrator pursuant to the relatedpooling and servicing agreement or trust and servicing agreement does not performany activities that address servicing criteria with respect to the issuingentity and because they are each not a “servicer” that meets the criteria inItem 1108(a)(2)(i) through (iii) of Regulation AB.

Withrespect to the *pari passu* loan combination that includes theUniversity Village Mortgage Loan, the servicer compliance statement of SitusHoldings, LLC, successor to Cohen Financial, a Division of Truist Bank,successor by merger to SunTrust Bank as special servicer of the UniversityVillage Mortgage Loan listed on the Exhibit Index is omitted from this AnnualReport on Form 10-K as it is not required by Item 1123 of Regulation AB to beincluded on this Annual Report on Form 10-K because it is an unaffiliated partythat is not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through(iii) of Regulation AB.

**PART I**

**Item 1.  Business.**

Omitted.

**Item 1A.  Risk Factors.**

Omitted.

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

None.

**Item 1C.  Cybersecurity.**

Omitted.

**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,as certificate administrator and as custodian.

In December 2014, Phoenix Light SF Limited (Phoenix Light)and certain related entities filed a complaint in the United States DistrictCourt for the Southern District of New York alleging claims against Wells FargoBank, N.A., in its capacity as trustee for a number of residentialmortgage-backed securities (RMBS) trusts. Complaints raising similarallegations have been filed by Commerzbank AG in the Southern District of NewYork, IKB International and IKB Deutsche Industriebank (together, IKB) in NewYork state court, and Park Royal I LLC and Park Royal II LLC in New York statecourt. In each case, the plaintiffs allege that Wells Fargo Bank, N.A., astrustee, caused losses to investors, and plaintiffs assert causes of actionbased upon, among other things, the trustee’s alleged failure to notify andenforce repurchase obligations of mortgage loan sellers for purported breachesof representations and warranties, notify investors of alleged events ofdefault, and abide by appropriate standards of care following alleged events ofdefault. In July 2022, the district court dismissed Phoenix Light’s claims andcertain of the claims asserted by Commerzbank AG, and subsequently enteredjudgment in each case in favor of Wells Fargo Bank, N.A. In August 2022,Phoenix Light and Commerzbank AG each appealed the district court’s decision tothe United States Court of Appeals for the Second Circuit. Phoenix Lightdismissed its appeal in May 2023, terminating its case. In November 2023, WellsFargo Bank, N.A. entered into an agreement with IKB to resolve IKB’s claims.Wells Fargo Bank, N.A. previously settled two class actions filed byinstitutional investors and an action filed by the National Credit UnionAdministration with similar allegations.

**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 March 30, 2020 pursuant to Rule 424(b)(2).

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

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

The reports on assessments of compliance with the servicingcriteria for asset-backed securities and related attestation reports on suchassessments of compliance with respect to the Selig Office Portfolio MortgageLoan, the Renaissance Plano Mortgage Loan and the APX Morristown Mortgage Loan,which are being serviced and administered pursuant to the pooling and servicingagreement for the CSAIL 2019-C17 Transaction, are attached hereto under Item 15to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling andservicing agreement for the CSAIL 2019-C17 Transaction incorporated byreference as Exhibit 4.2 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the CSAIL2019-C17 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 University Village Mortgage Loan,which is being serviced and administered pursuant to the trust and servicingagreement for the CSMC 2019-UVIL 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 CSMC 2019-UVIL 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 CSMC2019-UVIL 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 Westchester Mortgage Loan, whichis being serviced and administered pursuant to the trust and servicingagreement for the CSMC 2020-WEST 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 CSMC 2020-WEST Transaction incorporated byreference as Exhibit 4.4 to this Annual Report on Form 10-K is a chartidentifying the entities participating in a servicing function for the CSMC2020-WEST Transaction responsible for each applicable servicing criteria setforth in Item 1122(d).

**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 March 1,2020, by and among Credit Suisse Commercial Mortgage Securities Corp., asDepositor, Midland Loan Services, a Division of PNC Bank, National Association,as Master Servicer, 3650 REIT Loan Servicing LLC, as Special Servicer, WellsFargo Bank, National Association, as Certificate Administrator and as Trustee,and Park Bridge Lender Services LLC, as Operating Advisor and as AssetRepresentations Reviewer (filed as Exhibit 4.1 to the registrant’s CurrentReport on Form 8-K/A filed on April 7, 2020 under Commission File No.333-227081-05 and incorporated by reference herein).

4.2          Pooling and Servicing Agreement, dated as of September 1,2019, by and among Credit Suisse Commercial Mortgage Securities Corp., asDepositor, Midland Loan Services, a Division of PNC Bank, National Association,as Master Servicer and as Special Servicer, Wells Fargo Bank, NationalAssociation, as Certificate Administrator and as Trustee, and Park BridgeLender Services LLC, as Operating Advisor and as Asset Representations Reviewer(filed as Exhibit 4.2 to the registrant’s Current Report on Form 8-K filed onMarch 30, 2020 under Commission File No. 333-227081-05 and incorporated byreference herein).

4.3          Trust and Servicing Agreement, dated as of December 6,2019, among Credit Suisse Commercial Mortgage Securities Corp., as Depositor,Midland Loan Services, a Division of PNC Bank, National Association, asServicer, Cohen Financial, a Division of Truist Bank, successor by merger toSunTrust Bank, as Special Servicer, Wells Fargo Bank, National Association, asCertificate Administrator, Wells Fargo Bank, National Association, as Trustee,Wells Fargo Bank, National Association, as Custodian, and Park Bridge Lender ServicesLLC, as Operating Advisor (filed as Exhibit 4.4 to the registrant’s CurrentReport on Form 8-K filed on March 30, 2020 under Commission File No.333-227081-05 and incorporated by reference herein).

4.4          Trust and Servicing Agreement, dated as of February 1,2020, among Credit Suisse Commercial Mortgage Securities Corp., as Depositor,Midland Loan Services, a Division of PNC Bank, National Association, asServicer, Pacific Life Insurance Company, as Special Servicer, Wells FargoBank, National Association, as Certificate Administrator, Wells Fargo Bank,National Association, as Trustee, Wells Fargo Bank, National Association, asCustodian, and Pentalpha Surveillance LLC, as Operating Advisor (filed asExhibit 4.3 to the registrant’s Current Report on Form 8-K filed on March 30,2020 under Commission File No. 333-227081-05 and incorporated by referenceherein).

4.5          Agreement Between Note Holders, dated as of March 30,2020, by and between Column Financial, Inc. as Initial Note A-1 Holder, andColumn Financial, Inc., as Initial Note A-2 Holder (filed as Exhibit 4.5 to theregistrant’s Current Report on Form 8-K filed on March 30, 2020 underCommission File No. 333-227081-05 and incorporated by reference herein).

4.6          A/B Co-Lender Agreement, dated as of December 10, 2019,among Grass River Warehouse Facility Entity One, LLC, as Initial AdministrativeAgent, Grass River Warehouse Facility Entity One, LLC, as Initial Note-AHolder, and TCM CRE REIT LLC, as Initial Note-B Holder (filed as Exhibit 4.6 tothe registrant’s Current Report on Form 8-K filed on March 30, 2020 under CommissionFile No. 333-227081-05 and incorporated by reference herein).

4.7          Agreement Between Note Holders, dated as of September 4,2019, by and between Grass River Warehouse Facility Entity One, LLC, as InitialNote A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as InitialNote A-2 Holder (filed as Exhibit 4.7 to the registrant’s Current Report onForm 8-K filed on March 30, 2020 under Commission File No. 333-227081-05 andincorporated by reference herein).

4.8          Co-Lender Agreement, dated as of February 12, 2020, byand between Column Financial, Inc., as Initial Note A-1 Holder, ColumnFinancial, Inc., as Initial Note A-2 Holder, Column Financial, Inc., as InitialNote A-3 Holder, and Column Financial, Inc., as Initial Note B Holder (filed asExhibit 4.8 to the registrant’s Current Report on Form 8-K filed on March 30,2020 under Commission File No. 333-227081-05 and incorporated by referenceherein).

4.9          Agreement Between Noteholders, dated as of January 3,2020, by and among Grass River Real Estate Credit Partners Loan Funding, LLC,as Initial Note A-1, A-2, A-3, A-4, A-5 and A-6 Holder, and Cantor CommercialReal Estate Lending, L.P., as Initial Note B Holder (filed as Exhibit 4.9 tothe registrant’s Current Report on Form 8-K filed on March 30, 2020 underCommission File No. 333-227081-05 and incorporated by reference herein).

4.10         Co-Lender Agreement, dated as of December 2, 2019, by andbetween Column Financial, Inc., as Initial Note A-1 Holder, Column Financial,Inc., as Initial Note A-2 Holder, Column Financial, Inc., as Initial Note A-3Holder, and Column Financial, Inc., as Initial Note B Holder (filed as Exhibit4.10 to the registrant’s Current Report on Form 8-K filed on March 30, 2020under Commission File No. 333-227081-05 and incorporated by reference herein).

4.11         Agreement Between Note Holders, dated as of September 4,2019, by and between Grass River Warehouse Facility Entity One, LLC, as InitialNote A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as InitialNote A-2 Holder (filed as Exhibit 4.11 to the registrant’s Current Report onForm 8-K filed on March 30, 2020 under Commission File No. 333-227081-05 andincorporated by reference herein).

4.12         A/B Co-Lender Agreement, dated as of March 2, 2020, amongGrass River Warehouse Facility Entity Two, LLC, as Initial AdministrativeAgent, Grass River Warehouse Facility Entity Two, LLC, as Initial Note-AHolder, and Grass River Warehouse Facility Entity Two, LLC, as Initial Note-BHolder (filed as Exhibit 4.12 to the registrant’s Current Report on Form 8-Kfiled on March 30, 2020 under Commission File No. 333-227081-05 and incorporatedby reference herein).

4.13         A/B Co-Lender Agreement, dated as of March 2, 2020, amongGrass River Warehouse Facility Entity Two, LLC, as Initial AdministrativeAgent, Grass River Warehouse Facility Entity Two, LLC, as Initial Note-AHolder, and Grass River Warehouse Facility Entity Two, LLC, as Initial Note-BHolder (filed as Exhibit 4.13 to the registrant’s Current Report on Form 8-Kfiled on March 30, 2020 under Commission File No. 333-227081-05 andincorporated by reference herein).

4.14         Agreement Between Note Holders, dated as of September 5,2019, by and between Grass River Warehouse Facility Entity One, LLC, as InitialNote A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as InitialNote A-2 Holder (filed as Exhibit 4.14 to the registrant’s Current Report onForm 8-K filed on March 30, 2020 under Commission File No. 333-227081-05 andincorporated by reference herein).

4.15         A/B Co-Lender Agreement, dated as of February 5, 2020,among Grass River Warehouse Facility Entity Two, LLC, as Initial AdministrativeAgent, Grass River Warehouse Facility Entity Two, LLC, as Initial Note-AHolder, and TCM CRE REIT LLC, as Initial Note-B Holder (filed as Exhibit 4.15to the registrant’s Current Report on Form 8-K filed on March 30, 2020 underCommission File No. 333-227081-05 and incorporated 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        3650 REIT Loan Servicing LLC, as Special Servicer

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

33.4        Wells Fargo Bank, National Association, asCustodian

33.5        Park Bridge Lender Services LLC, as OperatingAdvisor

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

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

33.8        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the KPMG Plaza at Hall ArtsMortgage Loan (see Exhibit 33.1)

33.9        3650 REIT Loan Servicing LLC, as Special Servicerof the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 33.2)

33.10      Wells Fargo Bank, National Association, as Trustee of the KPMG Plaza at HallArts Mortgage Loan (Omitted. See Explanatory Notes.)

33.11      Wells Fargo Bank, National Association, asCustodian of the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 33.4)

33.12      Park Bridge Lender Services LLC, as OperatingAdvisor of the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 33.5)

33.13      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.14      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Sol y Luna Mortgage Loan (seeExhibit 33.1)

33.15      3650 REIT Loan Servicing LLC, as Special Servicerof the Sol y Luna Mortgage Loan (see Exhibit 33.2)

33.16      Wells Fargo Bank, National Association, as Trustee of the Sol y Luna MortgageLoan (Omitted. See Explanatory Notes.)

33.17      Wells Fargo Bank, National Association, asCustodian of the Sol y Luna Mortgage Loan (see Exhibit 33.4)

33.18      Park Bridge Lender Services LLC, as OperatingAdvisor of the Sol y Luna Mortgage Loan (see Exhibit 33.5)

33.19      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.20      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Selig Office PortfolioMortgage Loan (see Exhibit 33.1)

33.21      3650 REIT Loan Servicing LLC, as Special Servicerof the Selig Office Portfolio Mortgage Loan (see Exhibit 33.2)

33.22      Wells Fargo Bank, National Association, as Trustee of the Selig OfficePortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.23      Wells Fargo Bank, National Association, asCustodian of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.4)

33.24      Park Bridge Lender Services LLC, as OperatingAdvisor of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.5)

33.25      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.26      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Renaissance Plano MortgageLoan (see Exhibit 33.1)

33.27      3650 REIT Loan Servicing LLC, as Special Servicerof the Renaissance Plano Mortgage Loan (see Exhibit 33.2)

33.28      Wells Fargo Bank, National Association, as Trustee of the Renaissance PlanoMortgage Loan (Omitted. See Explanatory Notes.)

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

33.30      Park Bridge Lender Services LLC, as OperatingAdvisor of the Renaissance Plano Mortgage Loan (see Exhibit 33.5)

33.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.32      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the APX Morristown Mortgage Loan(see Exhibit 33.1)

33.33      3650 REIT Loan Servicing LLC, as Special Servicerof the APX Morristown Mortgage Loan (see Exhibit 33.2)

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

33.35      Wells Fargo Bank, National Association, asCustodian of the APX Morristown Mortgage Loan (see Exhibit 33.4)

33.36      Park Bridge Lender Services LLC, as OperatingAdvisor of the APX Morristown Mortgage Loan (see Exhibit 33.5)

33.37      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

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

33.39      Situs Holdings, LLC, successor to Cohen Financial,a Division of Truist Bank, successor by merger to SunTrust Bank, as SpecialServicer of the University Village Mortgage Loan

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

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

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

33.43      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.44      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of The Westchester Mortgage Loan (seeExhibit 33.1)

33.45      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of The Westchester Mortgage Loan (seeExhibit 33.1)

33.46      Wells Fargo Bank, National Association, as Trustee of The Westchester MortgageLoan (Omitted. See Explanatory Notes.)

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

33.48      Pentalpha Surveillance LLC, as Operating Advisorof The Westchester Mortgage Loan

33.49      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 33.7)

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        3650 REIT Loan Servicing LLC, as Special Servicer

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

34.4        Wells Fargo Bank, National Association, asCustodian

34.5        Park Bridge Lender Services LLC, as OperatingAdvisor

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

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

34.8        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the KPMG Plaza at Hall ArtsMortgage Loan (see Exhibit 34.1)

34.9        3650 REIT Loan Servicing LLC, as Special Servicerof the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 34.2)

34.10      Wells Fargo Bank, National Association, as Trustee of the KPMG Plaza at HallArts Mortgage Loan (Omitted. See Explanatory Notes.)

34.11      Wells Fargo Bank, National Association, as Custodianof the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 34.4)

34.12      Park Bridge Lender Services LLC, as OperatingAdvisor of the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 34.5)

34.13      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.14      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Sol y Luna Mortgage Loan (seeExhibit 34.1)

34.15      3650 REIT Loan Servicing LLC, as Special Servicerof the Sol y Luna Mortgage Loan (see Exhibit 34.2)

34.16      Wells Fargo Bank, National Association, as Trustee of the Sol y Luna MortgageLoan (Omitted. See Explanatory Notes.)

34.17      Wells Fargo Bank, National Association, asCustodian of the Sol y Luna Mortgage Loan (see Exhibit 34.4)

34.18      Park Bridge Lender Services LLC, as OperatingAdvisor of the Sol y Luna Mortgage Loan (see Exhibit 34.5)

34.19      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.20      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Selig Office PortfolioMortgage Loan (see Exhibit 34.1)

34.21      3650 REIT Loan Servicing LLC, as Special Servicerof the Selig Office Portfolio Mortgage Loan (see Exhibit 34.2)

34.22      Wells Fargo Bank, National Association, as Trustee of the Selig OfficePortfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.23      Wells Fargo Bank, National Association, asCustodian of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.4)

34.24      Park Bridge Lender Services LLC, as OperatingAdvisor of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.5)

34.25      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.26      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Renaissance Plano MortgageLoan (see Exhibit 34.1)

34.27      3650 REIT Loan Servicing LLC, as Special Servicerof the Renaissance Plano Mortgage Loan (see Exhibit 34.2)

34.28      Wells Fargo Bank, National Association, as Trustee of the Renaissance PlanoMortgage Loan (Omitted. See Explanatory Notes.)

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

34.30      Park Bridge Lender Services LLC, as OperatingAdvisor of the Renaissance Plano Mortgage Loan (see Exhibit 34.5)

34.31      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.32      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the APX Morristown Mortgage Loan(see Exhibit 34.1)

34.33      3650 REIT Loan Servicing LLC, as Special Servicerof the APX Morristown Mortgage Loan (see Exhibit 34.2)

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

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

34.36      Park Bridge Lender Services LLC, as OperatingAdvisor of the APX Morristown Mortgage Loan (see Exhibit 34.5)

34.37      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

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

34.39      Situs Holdings, LLC, successor to Cohen Financial,a Division of Truist Bank, successor by merger to SunTrust Bank, as SpecialServicer of the University Village Mortgage Loan

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

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

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

34.43      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.44      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of The Westchester Mortgage Loan (seeExhibit 34.1)

34.45      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of The Westchester Mortgage Loan (seeExhibit 34.1)

34.46      Wells Fargo Bank, National Association, as Trustee of The Westchester MortgageLoan (Omitted. See Explanatory Notes.)

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

34.48      Pentalpha Surveillance LLC, as Operating Advisorof The Westchester Mortgage Loan

34.49      Computershare Trust Company, National Association,as Servicing Function Participant for the Custodian (see Exhibit 34.7)

35           Servicer compliance statements.

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

35.2        3650 REIT Loan Servicing LLC, as Special Servicer

35.3        Wells Fargo Bank, National Association, asCertificate Administrator

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

35.5        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the KPMG Plaza at Hall ArtsMortgage Loan (see Exhibit 35.1)

35.6        3650 REIT Loan Servicing LLC, as Special Servicerof the KPMG Plaza at Hall Arts Mortgage Loan (see Exhibit 35.2)

35.7        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Sol y Luna Mortgage Loan (seeExhibit 35.1)

35.8        3650 REIT Loan Servicing LLC, as Special Servicerof the Sol y Luna Mortgage Loan (see Exhibit 35.2)

35.9        Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Selig Office PortfolioMortgage Loan (see Exhibit 35.1)

35.10      3650 REIT Loan Servicing LLC, as Special Servicerof the Selig Office Portfolio Mortgage Loan (see Exhibit 35.2)

35.11      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the Renaissance Plano MortgageLoan (see Exhibit 35.1)

35.12      3650 REIT Loan Servicing LLC, as Special Servicerof the Renaissance Plano Mortgage Loan (see Exhibit 35.2)

35.13      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of the APX Morristown Mortgage Loan(see Exhibit 35.1)

35.14      3650 REIT Loan Servicing LLC, as Special Servicerof the APX Morristown Mortgage Loan (see Exhibit 35.2)

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

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

35.17      Midland Loan Services, a Division of PNC Bank,National Association, as Primary Servicer of The Westchester Mortgage Loan (seeExhibit 35.1)

35.18      Midland Loan Services, a Division of PNC Bank,National Association, as Special Servicer of The Westchester Mortgage Loan (seeExhibit 35.1)

99.1         Mortgage Loan Purchase Agreement, dated as of March 11,2020 between Column Financial, Inc. and Credit Suisse Commercial MortgageSecurities Corp. (filed as Exhibit 99.1 to the registrant’s Current Report onForm 8-K filed on March 30, 2020 under Commission File No. 333-227081-05 andincorporated by reference herein).

99.2         Mortgage Loan Purchase Agreement, dated as of March 11,2020, among 3650 REIT Loan Funding 1 LLC, 3650 Real Estate Investment Trust 1LLC and Credit Suisse Commercial Mortgage Securities Corp. (filed as Exhibit99.2 to the registrant’s Current Report on Form 8-K/A filed on April 7, 2020under Commission File No. 333-227081-05 and incorporated by reference herein).

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

(c)    Not Applicable.

**SIGNATURES**

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

Credit Suisse Commercial MortgageSecurities Corp.(Depositor)

/s/ LawrenceChun                                                          

LawrenceChun, Authorized Signatory

(senior officer in charge ofsecuritization of the depositor)

Date: March 11, 2024