NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) is pleased to announce the assignment of preliminary ratings to three classes of the BSPRT 2017-FL1 transaction, a $418.1 million managed CRE CLO securitization. The transaction, which will be fully ramped at closing, features a 12-month reinvestment period as well as overcollateralization and interest coverage cash diversion tests. It will initially be collateralized by 25 floating-rate non-recourse loans with an aggregate cut-off date