FREE WRITING PROSPECTUS

FILED PURSUANT TO RULE 433

REGISTRATION FILE NO.: 333-227081-01

From: Cs Sp Syndicate (CREDIT SUISSE SECURI) <cssyndicate@bloomberg.net>

Date: Tuesday, Feb 19, 2019, 10:03 AM

Subject: ** NEW ISSUE CMBS ANNOUNCEMENT ** CSAIL 2019-C15 ** PUBLIC CMBS **

CSAIL COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2019-C15

JOINT BOOKRUNNERS : Credit Suisse, Société Générale

	RATINGS	AVAIL	WAL			UW NOI
CLS	F/D/M	SIZE $MM	YRS	P.WIN	C/E%	LTV%	D/Y%
A-1	AAAsf/AAA(sf)/Aaa(sf)	11.856	2.87	1-55	30.000	41.0	16.5
A-2	AAAsf/AAA(sf)/Aaa(sf)	64.072	5.01	55-61	30.000	41.0	16.5
A-3	AAAsf/AAA(sf)/Aaa(sf)	225.000*	9.44*	103–115*	30.000	41.0	16.5
A-4	AAAsf/AAA(sf)/Aaa(sf)	254.026*	9.73*	115–118*	30.000	41.0	16.5
A-SB	AAAsf/AAA(sf)/Aaa(sf)	25.521	6.93	61-103	30.000	41.0	16.5
A-S	AAAsf/AAA(sf)/Aa3(sf)	62.194	9.86	118-118	22.500	45.4	14.9
B	AA-sf/AA(sf)/NR	37.316	9.86	118-118	18.000	48.0	14.1
C	A-sf/A(sf)/NR	39.390	9.86	118-119	13.250	50.8	13.3

* Sizes, WALs and principal windows are subject to change as detailed in the attached Term Sheet.

* Expected Settle:	03/6/19	* Format:	SEC-Registered
* First Pay Date:	04/17/19	* Min Denoms:	$10k by $1
* Expected Ratings:	F/D/M	* ERISA:	Yes
* Ticker:	CSAIL 2019-C15	* Timing:	~Friday

THIRD PARTY PASSWORDS

Vendor	Deal	Password
Bloomberg	CSAIL 2019-C15	19CSAIL15
Trepp	CSAIL 2019-C15	19CSAIL15
Intex	CSI19C15	lovturtrfnfmlkrf
Roadshow	www.netroadshow.com	CSAILC15 (not case-sensitive)

SPONSORS AND LOAN SELLERS

Column Financial	35.1%
3650 REIT	40.1%
Societe Generale Financial Corporation	17.9%
BSPRT CBMS Finance	6.9%

Master Servicer:	Midland
Special Servicer:	Midland

CS SYNDICATE

Craig Leonard	212-325-8549
Roger Tedesco	212-325-8549
Colin Harrington	212-325-8549

CS CMBS BANKING

Chuck Lee	212-538-1807
Michael Brunner	212-325-0230
Julia Powell	212-325-3294

CS CMBS TRADING

Will Goldsmith	212-325-4240
Brad Marvin	212-325-4240

SG SYNDICATE:

Bob Pucel	212-278-5243
David Rose	212-278-6957
Lisa Schexnayder:	212-278-5240

SG CMBS BANKING:

Adam Ansaldi	212-278-6126
Jim Barnard	212-278-6263
Justin Cappuccino	212-278-6393

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Investors are urged to read the final prospectus relating to these securities because it contains important information regarding the offering that is not included herein. The issuer, the underwriters or any dealer participating in the offering will arrange to send you the final prospectus if you request it by calling toll-free 1-800-221-1037.

The asset-backed securities referred to in these materials, and the asset pool backing them, are subject to modification or revision (including the possibility that one or more classes of securities may be split, combined or eliminated at any time prior to issuance or availability of a final prospectus) and are offered on a "when, as and if issued" basis.

The information contained in these materials may be based on assumptions regarding market conditions and other matters as reflected herein. Credit Suisse Securities (USA) LLC and the other underwriters make no representation regarding the reasonableness of such assumptions or the likelihood that any such assumptions will coincide with actual market conditions or events, and these materials should not be relied upon for such purposes. The underwriters and their respective affiliates, officers, directors, partners and employees, including persons involved in the preparation or issuance of these materials, may, from time to time, have long or short positions in, and buy and sell, the securities mentioned herein or derivatives thereof (including options). Credit Suisse Securities (USA) LLC and the other underwriters may have an investment or commercial banking relationship with the issuer.

Information in these materials is current as of the date appearing on the material only. This free writing prospectus is not required to contain all information that is required to be included in the prospectus. The information in this free writing prospectus is preliminary and subject to change. Information in these materials regarding any securities discussed herein supersedes all prior information regarding such securities. These materials are not to be construed as an offer to sell or the solicitation of any offer to buy any security in any jurisdiction where such an offer or solicitation would be illegal. You should consult your own counsel, accountant and other advisors as to the legal, tax, business, financial and related aspects of a purchase of these securities.

The issuer has filed a registration statement (including a prospectus) with the SEC (registration statement file no. 333-227081) for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling toll-free 1-800-221-1037. The securities may not be suitable for all investors.

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