Legal Question in Family Law in California

I'm not sure how you have determined that you are a legal resident of Florida. If you have lived in California for six months or more and are not a full time student, California considers you a legal resident of California, and it is likely Florida does too. And even if you are a full time student, California will exercise jurisdiction over your divorce if you have lived here six months or more. As for the issue of your husband's residence, it doesn't matter. The only problem his lack of a residence will have is finding him to serve him with the summons and petition for dissolution of marriage. If he is "couch surfing" or otherwise occupying a known location, that's one thing. If he's just on the road, though, you will have to jump through a number of hoops ending with serving him by publication.