NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) is pleased to announce the assignment of preliminary ratings to 16 classes of UBS 2017-C4 (see ratings list below), a $818.3 million CMBS conduit transaction collateralized by 50 commercial mortgage loans secured by 85 properties. The collateral properties are located in 21 states, with three representing more than 10.0% of the pool balance, New York (20.9%), California (13.6%), and Illinois (10.4%). The pool has exposure to all the maj