“Maurice, being from PR, was considered the “acceptable” Hispanic, due to antipathy towards the Cubans by the black and Jewish communities (Jewbans excepted) back in the early 1980s.”
You are correct, but he was not seen as being Cuban outside of the community (aside from the usual suspects at the time who thought all Latinos in Miami had to be Cuban), and he was always referred to as "Puerto Rican" by the Herald (which was very much anti-Cuban exile during the 1970s and 1980s, especially when the Mariel boatlift hit). Maurice was able to get support from within the black and Jewish communities where other emerging Cuban American politicians could not.
I don't know much about Maurice's relationship with the CANF and Sr. Mas Canosa. I was, after all, just a child in New York at the time.