NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns preliminary ratings to six classes of secured tower revenue notes, Series 2016-1 and Series 2018-1 (the “Notes”) issued by VB-S1 Issuer, LLC. The Secured Tower Revenue Notes, Series 2018-1 Class C Notes, Series 2018-1 Class D Notes, the Series 2018-1 Class F Notes and the Series 2018-1 Class R Notes (together, the “Series 2018-1 Notes”) anticipated to be issued by VB-S1 Issuer, LLC (the “Issuer”) represents Vertical Bridge Manag