 He resides in Gualo Rai, Saipan, the Northern Mariana Islands.Guerrero is the president of chairman of several CNMI based businesses, including Juan T. Guerrero & Associates, Inc. since 1991, the president and general manager of Herman's Modern Bakery, Inc. since 1972, and the president of the Insurance & Business Management Corporation since 1982.Guerrero was elected to the Northern Mariana Islands House of Representatives, where he served from 1984 to 1985 during the 4th Commonwealth Legislature.