NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns preliminary ratings to 34 classes of mortgage pass-through certificates from Sequoia Mortgage Trust 2017-CH1 (SEMT 2017-CH1), Redwood’s first prime issuance to contain a significant concentration of loans that KBRA considers to be “expanded-prime.” The SEMT 2017-CH1 mortgage pool comprises 421 first-lien mortgage loans with an aggregate principal balance of $316,491,455, as of the cut-off date. The underlying collateral consists
