NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns ratings to 60 classes of mortgage pass-through certificates from Sequoia Mortgage Trust 2018-CH3 (SEMT 2018-CH3), Redwood’s fifth prime issuance to contain a significant concentration of loans that KBRA considers to be “expanded-prime.” The SEMT 2018-CH3 mortgage pool comprises 549 first-lien mortgage loans with an aggregate principal balance of $416,960,596, as of the cut-off date. The underlying collateral consists entirely of