OREANDA-NEWS. Fitch Ratings affirms Credit Suisse First Boston Mortgage Securities Corp. (CSMC), series 2009-RR3. A detailed list of rating actions follows at the end of this press release.

KEY RATING DRIVERS

The affirmations are a result of Fitch's affirmation of the underlying A-5 bond. This transaction is a resecuritization of the ownership interest in a single commercial mortgage-backed certificate, WBCMT series 2007-C30 class A-5. Principal and interest from the underlying commercial mortgage-backed certificate is applied to the A5-A, A5-B certificates in sequential order, while losses are applied in reverse sequential order.

Fitch reviewed the underlying transaction on Jan. 28, 2016 and affirmed class A-5. For more information, see 'Fitch Upgrades 3 Classes of WBCMT 2007-C30; Removes Rating Watch Positive' (Jan. 28, 2016).

RATING SENSITIVITIES
The Rating Outlook on the Re-REMIC bonds remains Stable, and no rating actions are expected. Credit enhancement for class A5-A is approximately 60% and is provided by the structural support of the A5-B certificate. Credit enhancement for the A5-B certificate is approximately 44% and provided by the structural support of the underlying transaction.

As of the February 2016 remittance, the WBCMT 2007-C30 transaction consists of 212 multifamily and commercial mortgage loans with a principal balance of approximately $5.1 billion. Classes A5-A and A5-B have a total principal balance of $105,145,000 which represents approximately 5.6% of the total balance of the underlying class A5 certificate.

Any extraordinary trust fund expenses incurred by the Trustee up to the first $200,000 will be reimbursed to the Trustee by an affiliate of the depositor. In the event extraordinary trust fund expenses exceed $200,000, they will be paid from available interest.

Fitch reviewed the underlying collateral and performed loan level stressed analysis under the criteria described in 'U.S. and Canadian Fixed-Rate Multiborrower CMBS Surveillance and U.S. Re-REMIC Criteria', Nov. 13, 2015.

DUE DILIGENCE USAGE
No third-party due diligence was provided or reviewed in relation to this rating action.

Fitch has affirmed the following ratings:

--$75,145,000* class A5-A at 'AAA'; Outlook Stable;
--$60,100,000** class A5-A-A at 'AAA'; Outlook Stable;
--$15,045,000** class A5-A-B at 'AAA'; Outlook Stable;
--$30,000,000* class A5-B at 'AAA'; Outlook Stable;
--$14,900,000** class A5-B-A at 'AAA'; Outlook Stable;
--$15,100,000** class A5-B-B at 'AAA'; Outlook Stable.

*Exchangeable certificates
**Exchangeable REMIC certificates