NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) is pleased to announce the assignment of preliminary ratings to nine classes of BX 2018-MCSF, a CMBS single-borrower securitization. The collateral for the transaction is a $382.0 million non-recourse, first lien mortgage loan. The floating rate loan has an initial two-year term with five, one-year extension options and requires monthly interest-only payments. The loan is secured by the borrower’s fee simple interest in a 758,687 sf, Cl