NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) is pleased to announce the assignment of preliminary ratings to 16 classes of UBS 2018-C13 (see ratings list below), a $714.9 million CMBS conduit transaction collateralized by 53 commercial mortgage loans secured by 68 properties. The collateral properties are located in 29 states, with one state exposure, California (11.9%), representing more than 10.0% of the pool balance. The pool has exposure to all of the major property types, wit