NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) has assigned preliminary ratings to six classes of 280 Park Avenue 2017-280P, a CMBS single asset, single borrower (SASB) securitization. The collateral for the securitization is a $1.1 billion non-recourse, first lien mortgage loan. The floating rate loan has an initial two-year term with five, one-year extension options and requires interest-only payments throughout its term. The loan is secured by the borrower’s fee simple interest i