**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, 2018or**

**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: 333-199921-01**

**Central Index Key Number of the issuing entity:0001634172**

**CSAIL 2015-C1 Commercial MortgageTrust**

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

** **

**Central Index Key Number of the depositor: 0000802106**

**Credit Suisse First Boston MortgageSecurities Corp.**

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

** **

**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: 0001576832**

**MC-Five Mile Commercial MortgageFinance LLC**

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

** **

**Central Index Key Number of the sponsor: 0001505494**

**The Bancorp Bank**

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

** **

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

**Benefit Street Partners CRE FinanceLLC**

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

**(formerly known as BSPCCLender L.L.C.)**

** **

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

**the issuing entity)** | **38-3955488**

**38-3955489**

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

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

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

**as Certificate Administrator**

**9062 Old Annapolis Road**

**Columbia, MD**

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

**21045**

**(Zip Code)**

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

**(212) 272-6858**

Securities registered pursuant to Section 12(b) of the Act:None.

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

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

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

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

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

Not applicable.

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

Not applicable.

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

Large acceleratedfiler        o                                                                                                       Acceleratedfiler                                     o

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

                                                                                                                                                       Emerging growth company                    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 ExchangeAct.                                            o

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

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

Not applicable.

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

Not applicable.

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

Not applicable.

**DOCUMENTS INCORPORATED BY REFERENCE**

** **

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

Not applicable.

 

 

The Soho-Tribeca Grand Hotel Portfolio Mortgage Loan, theWestfield Trumbull Mortgage Loan and the Bayshore Mall Mortgage Loan, whichconstituted approximately 9.1%, 6.4% and 1.9%, respectively, of the asset poolof the issuing entity as of its cut-off date, are each an asset of the issuingentity and are each part of a loan combination that includes (a) theSoho-Tribeca Grand Hotel Portfolio Mortgage Loan, which is an asset of theissuing entity, and two other *pari passu* loans and one subordinatecompanion loan, each of which are not assets of the issuing entity, (b) theWestfield Trumbull Mortgage Loan, which is an asset of the issuing entity, and twoother *pari passu* loans, which are not assets of the issuing entity and(c) the Bayshore Mall Mortgage Loan, which is an asset of the issuing entity,and one other *pari passu* loan, which is not an asset of the issuingentity. These loan combinations, including the Soho-Tribeca Grand HotelPortfolio Mortgage Loan, the Westfield Trumbull Mortgage Loan and the BayshoreMall Mortgage Loan, are being serviced and administered pursuant to the Poolingand Servicing Agreement, which is incorporated by reference as Exhibit 4.1 tothis Annual Report on Form 10-K. KeyBank National Association is the masterservicer under the Pooling and Servicing Agreement. The responsibilities ofKeyBank National Association, as primary servicer of each of these loancombinations with respect to the issuing entity, are subsumed within itsresponsibilities as master servicer under the Pooling and Servicing Agreement.Thus, the servicer compliance statement provided by KeyBank NationalAssociation, as master servicer under the Pooling and Servicing Agreement,encompasses its roles as both master servicer and primary servicer with respectto these loan combinations.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the 500 Fifth Avenue Mortgage Loan and the St.Louis Premium Outlets Mortgage Loan, which constituted approximately 8.2% and2.1%, respectively, of the asset pool of the issuing entity as of its cut-offdate. The 500 Fifth Avenue Mortgage Loan and the St. Louis Premium OutletsMortgage Loan are each an asset of the issuing entity and are each part of aloan combination that includes (a) the 500 Fifth Avenue Mortgage Loan and oneother *pari passu* loan, which is not an asset of the issuing entity and(b) the St. Louis Premium Outlets Mortgage Loan and two other *pari passu*loans, which are not assets of the issuing entity. A *pari passu* portionof each loan combination was securitized in the JPMBB Commercial MortgageSecurities Trust 2014-C26 transaction, Commission File Number 333-190246-11(the “JPMBB 2014-C26 Transaction”). These loan combinations, includingthe 500 Fifth Avenue Mortgage Loan and the St. Louis Premium Outlets MortgageLoan, are being serviced and administered pursuant to the pooling and servicingagreement for the JPMBB 2014-C26 Transaction, which is incorporated byreference as Exhibit 4.2 to this Annual Report on Form 10-K. Midland LoanServices, a Division of PNC Bank, National Association is the master servicerunder the pooling and servicing agreement for the JPMBB 2014-C26 Transaction.The responsibilities of Midland Loan Services, a Division of PNC Bank, NationalAssociation, as primary servicer of these loan combinations with respect to theissuing entity, are subsumed within its responsibilities as master servicerunder the pooling and servicing agreement for the JPMBB 2014-C26 Transaction.Thus, the servicer compliance statement provided by Midland Loan Services, aDivision of PNC Bank, National Association, as master servicer under suchpooling and servicing agreement, encompasses its roles as both master servicerand primary servicer with respect to these loan combinations.

The Exhibit Index describesexhibits provided by certain parties (in their capacities indicated on theExhibit Index) with respect to the Westfield Wheaton Mortgage Loan, whichconstituted approximately 3.5% of the asset pool of the issuing entity as ofits cut-off date. The Westfield Wheaton Mortgage Loan is an asset of theissuing entity and is part of a loan combination that includes the WestfieldWheaton Mortgage Loan and two other *pari passu* loans, which are notassets of the issuing entity. This loan combination, including theWestfield Wheaton Mortgage Loan, was serviced under the Pooling and ServicingAgreement for the issuing entity prior to the closing of the securitization ofa *pari passu* portion of the Westfield Wheaton loan combination in theCSAIL 2015-C2 Commercial Mortgage Trust transaction, Commission File Number333-199921-02 (the “CSAIL 2015-C2 Transaction”). After the closing ofthe CSAIL 2015-C2 Transaction on May 20, 2015, this loan combination, includingthe Westfield Wheaton Mortgage Loan was, and will continue to be, serviced and administeredpursuant to the pooling and servicing agreement with respect to the CSAIL2015-C2 Transaction, which is incorporated by reference as Exhibit 4.3 to thisAnnual Report on Form 10-K. Wells Fargo Bank, National Association is themaster servicer under the pooling and servicing agreement for the CSAIL 2015-C2Transaction. The responsibilities of Wells Fargo Bank, National Association, asprimary servicer of this loan combination with respect to the issuing entity,are subsumed within its responsibilities as master servicer under the poolingand servicing agreement for the CSAIL 2015-C2 Transaction. Thus, the servicercompliance statement provided by Wells Fargo Bank, National Association, asmaster servicer under such pooling and servicing agreement, encompasses itsroles as both master servicer and primary servicer with respect to this loancombination.

Wells Fargo Bank, NationalAssociation is the certificate administrator of the mortgage loans servicedunder the Pooling and Servicing Agreement, the 500 Fifth Avenue Mortgage Loanand the St. Louis Premium Outlets Mortgage Loan and the primary servicer andcertificate administrator of the Westfield Wheaton Mortgage Loan. As a result,Wells Fargo Bank, National Association is a “servicer” as defined in Item1108(a)(2)(iii) of Regulation AB, in the capacities described above, because itis servicing mortgage loans that constituted 10% or more of the assets of theissuing entity as of its cut-off date. The assessments of compliance withapplicable servicing criteria, accountants’ attestation reports and servicercompliance statements delivered by Wells Fargo Bank, National Association inthe capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association is the trustee andcustodian of the mortgage loans serviced under the Pooling and ServicingAgreement, the 500 Fifth Avenue Mortgage Loan and the St. Louis Premium OutletsMortgage Loan and the custodian of the Westfield Wheaton Mortgage Loan. As aresult, Wells Fargo Bank, National Association 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 Wells Fargo Bank, NationalAssociation in the capacities described above are listed in the Exhibit Index.

Park Bridge Lender Services LLC is the operating advisor ofthe mortgage loans serviced under the Pooling and Servicing Agreement and theWestfield Wheaton Mortgage Loan. As a result, Park Bridge Lender Services LLCis a servicing function participant in the capacities described above, becauseit is 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.

Midland Loan Services, a Divisionof PNC Bank, National Association is the primary servicer and special servicerof the 500 Fifth Avenue Mortgage Loan and the St. Louis Premium OutletsMortgage Loan. As a result, Midland Loan Services, a Division of PNC Bank,National Association 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 Midland Loan Services, a Division of PNC Bank, National Associationin the capacities described above are listed in the Exhibit Index.

Pentalpha Surveillance LLC is the senior trust advisor of the500 Fifth Avenue Mortgage Loan and the St. Louis Premium Outlets Mortgage Loan.As a result, Pentalpha Surveillance LLC 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 Pentalpha Surveillance LLC in thecapacities described above are listed in the Exhibit Index.

This Annual Report on Form 10-Kincludes assessments of compliance with applicable servicing criteria andaccountants’ attestation reports from CoreLogic Commercial Real EstateServices, Inc. and National Tax Search, LLC. These entities were engagedby the primary servicer of the Westfield Wheaton Mortgage Loan to remit taxpayments 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, these vendors are “servicers” for thepurposes of Item 1122 of Regulation AB. *See* Compliance andDisclosure Interpretations, Section 301.01 (Item 1101(j)).

With respect to the *pari passu*loan combination that includes the Westfield Wheaton Mortgage Loan, (i) thereport on assessment of compliance with servicing criteria and attestationreport on assessment of compliance with servicing criteria of Rialto CapitalAdvisors, LLC as special servicer of the Westfield Wheaton Mortgage Loan andWilmington Trust, National Association as trustee of the Westfield WheatonMortgage Loan, listed on the Exhibit Index are omitted from this Annual Reporton Form 10-K as they are not required to be included on this Annual Report onForm 10-K per Instruction 3 to Item 1122 of Regulation AB because they areparties performing activities that address servicing criteria relating to 5% orless of the assets of the issuing entity; and (ii) the servicer compliancestatement of Rialto Capital Advisors, LLC as special servicer of the WestfieldWheaton 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 2. Properties.**

Omitted.

**Item 3. Legal Proceedings.**

Omitted.

**Item 4. Mine Safety Disclosures.**

Not applicable.

**PART II**

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

Omitted.

**Item 6. Selected Financial Data.**

Omitted.

**Item 7. Management’s Discussion and Analysis of Financial Conditionand Results of Operations.**

Omitted.

**Item 7A. Quantitative and Qualitative Disclosures AboutMarket Risk.**

Omitted.

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

Omitted.

**Item 9. Changes in and Disagreements With Accountants onAccounting and Financial Disclosure.**

Omitted.

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

Omitted.

**Item 9B. Other Information.**

None.

**PART III**

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

Omitted.

**Item 11. Executive Compensation.**

Omitted.

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

Omitted.

**Item 13. Certain Relationships and Related Transactions,and Director Independence.**

Omitted.

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

Omitted.

**ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB**

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

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

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

No entity or group of affiliated entities provides any externalcreditenhancement 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:

Since June 18, 2014, a group of institutional investors havefiled civil complaints in the Supreme Court of the State of New York, New YorkCounty, and later the U.S. District Court for the Southern District of New Yorkagainst Wells Fargo Bank, N.A., (“Wells Fargo Bank”) in its capacity astrustee for certain residential mortgage backed securities (“RMBS”)trusts.  The complaints against Wells Fargo Bank alleged that the trusteecaused losses to investors and asserted causes of action based upon, amongother things, the trustee’s alleged failure to: (i) notify and enforcerepurchase obligations of mortgage loan sellers for purported breaches ofrepresentations and warranties, (ii) notify investors of alleged events ofdefault, and (iii) abide by appropriate standards of care following allegedevents of default. Relief sought included money damages in an unspecified amount,reimbursement of expenses, and equitable relief. Wells Fargo Bank has reachedan agreement, in which it denies any wrongdoing, to resolve these claims on aclasswide basis for the 271 RMBS trusts currently at issue.  Thesettlement agreement is subject to court approval.  Separate lawsuitsagainst Wells Fargo Bank making similar allegations filed by certain otherinstitutional investors concerning 57 RMBS trusts in New York federal and statecourt are not covered by the agreement.  With respect to the foregoinglitigations, Wells Fargo Bank believes plaintiffs’ claims are without merit andintends to contest the claims vigorously, but there can be no assurances as tothe outcome of the litigations or the possible impact of the litigations onWells Fargo Bank or the RMBS trusts.

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

The information regarding this Item has been previouslyprovided in a prospectus supplement of the Registrant relating to the issuingentity filed on March 20, 2015 pursuant to Rule 424(b)(5).

**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 Oto 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 500 Fifth Avenue Mortgage Loanand the St. Louis Premium Outlets Mortgage Loan, which are being serviced andadministered pursuant to the pooling and servicing agreement for the JPMBB2014-C26 Transaction, are attached hereto under Item 15 to this Annual Reporton Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement forthe JPMBB 2014-C26 Transaction incorporated by reference as Exhibit 4.2 to thisAnnual Report on Form 10-K is a chart identifying the entities participating ina servicing function for the JPMBB 2014-C26 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 Westfield Wheaton Mortgage Loan,which is being serviced and administered pursuant to the pooling and servicingagreement for the CSAIL 2015-C2 Transaction, are attached hereto under Item 15to this Annual Report on Form 10-K. Attached as Exhibit O to the pooling andservicing agreement for the CSAIL 2015-C2 Transaction incorporated by referenceas Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying theentities participating in a servicing function for the CSAIL 2015-C2Transaction responsible for each applicable servicing criteria set forth inItem 1122(d).

The report on assessment of compliance with applicableservicing criteria furnished pursuant to Item 1122 of Regulation AB by MidlandLoan Services, a Division of PNC Bank National Association discloses that amaterial instance of noncompliance occurred, as described below:

Material Instance of Noncompliance

In certain instances, the ScheduleAL Files (Item 1125 of Regulation AB) were not reported in accordance with theterms specified in the transaction agreements, in conflict with Item1122(d)(3)(i): “Reports to investors, including those to be filed with theCommission, are maintained in accordance with the transaction agreements andapplicable Commission requirements. Specifically, such reports: (A) Areprepared in accordance with timeframes and other terms set forth in thetransaction agreements”.  The noncompliance consisted of omitted orinaccurately reported numbers due to the following: (1) the initial setup filescontained information at the asset level, and Midland was required to manuallycompile the information to present it at the loan level as required by ScheduleAL; and (2) certain reporting requirements required manual processing byMidland, including the use of various data computation formulas, qualitycontrol checks and analysis.

The identified instances did notinvolve the servicing of assets included in this securitization.

Steps Taken to Remedy the Material Instance of Noncompliance

Midland is currently remediating theSchedule AL reporting for the CMBS transactions found to be incorrect, and willbe making improvements to its systems, processes and procedures to support itsSchedule AL reporting obligations.

**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. Exhibits, Financial Statement Schedules**

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

(1) Not applicable

(2) Not applicable

(3) See below

 

4.1          Poolingand Servicing Agreement, dated as of March 1, 2015, by and among Credit SuisseFirst Boston Mortgage Securities Corp., as Depositor, KeyBank National Association,as Master Servicer, C-III Asset Management LLC, as Special Servicer, ParkBridge Lender Services LLC, as Operating Advisor, Wells Fargo Bank, NationalAssociation, as Certificate Administrator and Wells Fargo Bank, NationalAssociation, as Trustee (filed as Exhibit 4.1 to the registrant’s CurrentReport on Form 8-K/A filed on March 27, 2015 under Commission File No.333-199921-01 and incorporated by reference herein).

4.2          Poolingand Servicing Agreement, dated as of December 1, 2014, by and among J.P. MorganChase Commercial Mortgage Securities Corp., as Depositor, Midland LoanServices, a Division of PNC Bank, National Association, as Master Servicer andSpecial Servicer, Wells Fargo Bank, National Association, as CertificateAdministrator and Trustee and Pentalpha Surveillance LLC, as Senior TrustAdvisor (filed as Exhibit 4.2 to the registrant’s Current Report on Form 8-Kfiled on March 20, 2015 under Commission File No. 333-199921-01 andincorporated by reference herein).

4.3          Poolingand Servicing Agreement, dated as of May 1, 2015, by and among Credit SuisseFirst Boston Mortgage Securities Corp., as Depositor, Wells Fargo Bank,National Association, as Master Servicer, Rialto Capital Advisors, LLC, asSpecial Servicer, Park Bridge Lender Services LLC, as Operating Advisor, WellsFargo Bank, National Association, as Certificate Administrator and WilmingtonTrust, National Association, as Trustee (filed as Exhibit 4.1 to theregistrant’s Current Report on Form 8-K filed on May 20, 2015 under CommissionFile No. 333-199921-01 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        KeyBank NationalAssociation, as Master Servicer

33.2        C-III Asset ManagementLLC, as Special Servicer

33.3        Wells Fargo Bank,National Association, as Trustee and Certificate Administrator

33.4        Wells Fargo Bank,National Association, as Custodian

33.5        Park Bridge LenderServices LLC, as Operating Advisor

33.6        Berkadia CommercialMortgage LLC, as Primary Servicer

33.7        KeyBank NationalAssociation, as Primary Servicer of the Soho-Tribeca Grand Hotel PortfolioMortgage Loan (see Exhibit 33.1) 

33.8        C-III Asset ManagementLLC, as Special Servicer of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 33.2) 

33.9        Wells Fargo Bank,National Association, as Trustee and Certificate Administrator of theSoho-Tribeca Grand Hotel Portfolio Mortgage Loan (see Exhibit 33.3) 

33.10       Wells Fargo Bank, NationalAssociation, as Custodian of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 33.4) 

33.11       Park Bridge Lender ServicesLLC, as Operating Advisor of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 33.5) 

33.12       KeyBank National Association,as Primary Servicer of the Westfield Trumbull Mortgage Loan (see Exhibit 33.1) 

33.13       C-III Asset Management LLC,as Special Servicer of the Westfield Trumbull Mortgage Loan (see Exhibit 33.2) 

33.14       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the Westfield TrumbullMortgage Loan (see Exhibit 33.3) 

33.15       Wells Fargo Bank, NationalAssociation, as Custodian of the Westfield Trumbull Mortgage Loan (see Exhibit33.4) 

33.16       Park Bridge Lender ServicesLLC, as Operating Advisor of the Westfield Trumbull Mortgage Loan (see Exhibit 33.5)

33.17       KeyBank National Association,as Primary Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 33.1) 

33.18       C-III Asset Management LLC, asSpecial Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 33.2) 

33.19       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the Bayshore MallMortgage Loan (see Exhibit 33.3) 

33.20       Wells Fargo Bank, NationalAssociation, as Custodian of the Bayshore Mall Mortgage Loan (see Exhibit 33.4)

33.21       Park Bridge Lender ServicesLLC, as Operating Advisor of the Bayshore Mall Mortgage Loan (see Exhibit 33.5)

33.22       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the 500Fifth Avenue Mortgage Loan

33.23       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the 500Fifth Avenue Mortgage Loan (see Exhibit 33.22) 

33.24       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the 500 Fifth AvenueMortgage Loan (see Exhibit 33.3) 

33.25       Wells Fargo Bank, NationalAssociation, as Custodian of the 500 Fifth Avenue Mortgage Loan (see Exhibit33.4) 

33.26       Pentalpha Surveillance LLC,as Senior Trust Advisor of the 500 Fifth Avenue Mortgage Loan

33.27       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the St.Louis Premium Outlets Mortgage Loan (see Exhibit 33.22) 

33.28       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the St.Louis Premium Outlets Mortgage Loan (see Exhibit 33.22) 

33.29       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the St. Louis PremiumOutlets Mortgage Loan (see Exhibit 33.3) 

33.30       Wells Fargo Bank, NationalAssociation, as Custodian of the St. Louis Premium Outlets Mortgage Loan (seeExhibit 33.4) 

33.31       Pentalpha Surveillance LLC,as Senior Trust Advisor of the St. Louis Premium Outlets Mortgage Loan (seeExhibit 33.26) 

33.32       Wells Fargo Bank, NationalAssociation, as Primary Servicer of the Westfield Wheaton Mortgage Loan

33.33       Rialto Capital Advisors, LLC, as Special Servicer of theWestfield Wheaton Mortgage Loan (Omitted. See Explanatory Notes.)

33.34       Wilmington Trust, National Association, as Trustee of theWestfield Wheaton Mortgage Loan (Omitted. See Explanatory Notes.)

33.35       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the Westfield Wheaton MortgageLoan (see Exhibit 33.3) 

33.36       Wells Fargo Bank, NationalAssociation, as Custodian of the Westfield Wheaton Mortgage Loan (see Exhibit33.4) 

33.37       Park Bridge Lender ServicesLLC, as Operating Advisor of the Westfield Wheaton Mortgage Loan (see Exhibit33.5) 

33.38       CoreLogic Commercial RealEstate Services, Inc., as Servicing Function Participant of the WestfieldWheaton Mortgage Loan

33.39       National Tax Search, LLC, asServicing Function Participant of the Westfield Wheaton Mortgage Loan

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

 

34.1        KeyBank NationalAssociation, as Master Servicer

34.2        C-III Asset ManagementLLC, as Special Servicer

34.3        Wells Fargo Bank,National Association, as Trustee and Certificate Administrator

34.4        Wells Fargo Bank,National Association, as Custodian

34.5        Park Bridge LenderServices LLC, as Operating Advisor

34.6        Berkadia CommercialMortgage LLC, as Primary Servicer

34.7        KeyBank NationalAssociation, as Primary Servicer of the Soho-Tribeca Grand Hotel PortfolioMortgage Loan (see Exhibit 34.1) 

34.8        C-III Asset ManagementLLC, as Special Servicer of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 34.2) 

34.9        Wells Fargo Bank,National Association, as Trustee and Certificate Administrator of theSoho-Tribeca Grand Hotel Portfolio Mortgage Loan (see Exhibit 34.3) 

34.10       Wells Fargo Bank, NationalAssociation, as Custodian of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 34.4) 

34.11       Park Bridge Lender ServicesLLC, as Operating Advisor of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 34.5) 

34.12       KeyBank National Association,as Primary Servicer of the Westfield Trumbull Mortgage Loan (see Exhibit 34.1) 

34.13       C-III Asset Management LLC,as Special Servicer of the Westfield Trumbull Mortgage Loan (see Exhibit 34.2) 

34.14       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the Westfield TrumbullMortgage Loan (see Exhibit 34.3) 

34.15       Wells Fargo Bank, National Association,as Custodian of the Westfield Trumbull Mortgage Loan (see Exhibit 34.4) 

34.16       Park Bridge Lender ServicesLLC, as Operating Advisor of the Westfield Trumbull Mortgage Loan (see Exhibit34.5) 

34.17       KeyBank National Association,as Primary Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 34.1) 

34.18       C-III Asset Management LLC,as Special Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 34.2) 

34.19       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the Bayshore MallMortgage Loan (see Exhibit 34.3) 

34.20       Wells Fargo Bank, NationalAssociation, as Custodian of the Bayshore Mall Mortgage Loan (see Exhibit 34.4)

34.21       Park Bridge Lender ServicesLLC, as Operating Advisor of the Bayshore Mall Mortgage Loan (see Exhibit 34.5)

34.22       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the 500Fifth Avenue Mortgage Loan

34.23       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the 500Fifth Avenue Mortgage Loan (see Exhibit 34.22) 

34.24       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the 500 Fifth AvenueMortgage Loan (see Exhibit 34.3) 

34.25       Wells Fargo Bank, NationalAssociation, as Custodian of the 500 Fifth Avenue Mortgage Loan (see Exhibit34.4) 

34.26       Pentalpha Surveillance LLC,as Senior Trust Advisor of the 500 Fifth Avenue Mortgage Loan

34.27       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the St. LouisPremium Outlets Mortgage Loan (see Exhibit 34.22) 

34.28       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the St.Louis Premium Outlets Mortgage Loan (see Exhibit 34.22) 

34.29       Wells Fargo Bank, NationalAssociation, as Trustee and Certificate Administrator of the St. Louis PremiumOutlets Mortgage Loan (see Exhibit 34.3) 

34.30       Wells Fargo Bank, NationalAssociation, as Custodian of the St. Louis Premium Outlets Mortgage Loan (seeExhibit 34.4) 

34.31       Pentalpha Surveillance LLC,as Senior Trust Advisor of the St. Louis Premium Outlets Mortgage Loan (seeExhibit 34.26) 

34.32       Wells Fargo Bank, NationalAssociation, as Primary Servicer of the Westfield Wheaton Mortgage Loan

34.33       Rialto Capital Advisors, LLC, as Special Servicer of theWestfield Wheaton Mortgage Loan (Omitted. See Explanatory Notes.)

34.34       Wilmington Trust, National Association, as Trustee of theWestfield Wheaton Mortgage Loan (Omitted. See Explanatory Notes.)

34.35       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the Westfield Wheaton MortgageLoan (see Exhibit 34.3) 

34.36       Wells Fargo Bank, NationalAssociation, as Custodian of the Westfield Wheaton Mortgage Loan (see Exhibit34.4) 

34.37       Park Bridge Lender ServicesLLC, as Operating Advisor of the Westfield Wheaton Mortgage Loan (see Exhibit34.5) 

34.38       CoreLogic Commercial RealEstate Services, Inc., as Servicing Function Participant of the WestfieldWheaton Mortgage Loan

34.39       National Tax Search, LLC, asServicing Function Participant of the Westfield Wheaton Mortgage Loan

35           Servicer compliance statements.

 

35.1        KeyBank NationalAssociation, as Master Servicer

35.2        C-III Asset ManagementLLC, as Special Servicer

35.3        Wells Fargo Bank,National Association, as Certificate Administrator

35.4        Berkadia CommercialMortgage LLC, as Primary Servicer

35.5        KeyBank NationalAssociation, as Primary Servicer of the Soho-Tribeca Grand Hotel PortfolioMortgage Loan (see Exhibit 35.1) 

35.6        C-III Asset ManagementLLC, as Special Servicer of the Soho-Tribeca Grand Hotel Portfolio MortgageLoan (see Exhibit 35.2) 

35.7        Wells Fargo Bank,National Association, as Certificate Administrator of the Soho-Tribeca GrandHotel Portfolio Mortgage Loan (see Exhibit 35.3) 

35.8        KeyBank NationalAssociation, as Primary Servicer of the Westfield Trumbull Mortgage Loan (seeExhibit 35.1) 

35.9        C-III Asset ManagementLLC, as Special Servicer of the Westfield Trumbull Mortgage Loan (see Exhibit35.2) 

35.10       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the Westfield Trumbull MortgageLoan (see Exhibit 35.3) 

35.11       KeyBank National Association,as Primary Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 35.1) 

35.12       C-III Asset Management LLC,as Special Servicer of the Bayshore Mall Mortgage Loan (see Exhibit 35.2) 

35.13       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the Bayshore Mall Mortgage Loan(see Exhibit 35.3) 

35.14       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the 500Fifth Avenue Mortgage Loan

35.15       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the 500Fifth Avenue Mortgage Loan (see Exhibit 35.14) 

35.16       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the 500 Fifth Avenue Mortgage Loan(see Exhibit 35.3) 

35.17       Midland Loan Services, aDivision of PNC Bank, National Association, as Primary Servicer of the St.Louis Premium Outlets Mortgage Loan (see Exhibit 35.14) 

35.18       Midland Loan Services, aDivision of PNC Bank, National Association, as Special Servicer of the St.Louis Premium Outlets Mortgage Loan (see Exhibit 35.14) 

35.19       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the St. Louis Premium OutletsMortgage Loan (see Exhibit 35.3) 

35.20       Wells Fargo Bank, NationalAssociation, as Primary Servicer of the Westfield Wheaton Mortgage Loan

35.21       Rialto Capital Advisors, LLC, as Special Servicer of theWestfield Wheaton Mortgage Loan (Omitted. See Explanatory Notes.)

35.22       Wells Fargo Bank, NationalAssociation, as Certificate Administrator of the Westfield Wheaton MortgageLoan (see Exhibit 35.3) 

99.1        MortgageLoan Purchase Agreement, dated as of March 1, 2015, between Credit Suisse FirstBoston Mortgage Securities Corp. and Column Financial, Inc. (filed as Exhibit99.1 to the registrant’s Current Report on Form 8-K filed on March 20, 2015under Commission File No. 333-199921-01 and incorporated by reference herein)

99.2        MortgageLoan Purchase Agreement, dated as of March 1, 2015, between Credit Suisse FirstBoston Mortgage Securities Corp. and MC-Five Mile Commercial Mortgage FinanceLLC (filed as Exhibit 99.2 to the registrant’s Current Report on Form 8-K filedon March 20, 2015 under Commission File No. 333-199921-01 and incorporated byreference herein)

99.3        MortgageLoan Purchase Agreement, dated as of March 1, 2015, between Credit Suisse FirstBoston Mortgage Securities Corp. and The Bancorp Bank (filed as Exhibit 99.3 tothe registrant’s Current Report on Form 8-K filed on March 20, 2015 underCommission File No. 333-199921-01 and incorporated by reference herein)

99.4        MortgageLoan Purchase Agreement, dated as of March 1, 2015, between Credit Suisse FirstBoston Mortgage Securities Corp. and BSPCC Lender L.L.C. (filed as Exhibit 99.4to the registrant’s Current Report on Form 8-K filed on March 20, 2015 underCommission File No. 333-199921-01 and incorporated by reference herein)

99.5        Amendedand Restated Subservicing Agreement, dated as of January 18, 2013, betweenKeyCorp Real Estate Capital Markets, Inc. and Berkadia Commercial Mortgage LLC(filed as Exhibit 99.5 to the registrant’s Current Report on Form 8-K filed onMarch 20, 2015 under Commission File No. 333-199921-01 and incorporated byreference 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 First Boston MortgageSecurities Corp.(Depositor)

/s/ OliverNisenson, Director

OliverNisenson, Director

(senior officer in charge ofsecuritization of the depositor)

Date: March 25, 2019