Yes, you can live in Puerto Rico (or other US territories) for over 180 days per year and still be domiciled in Florida. Domicile is based on both subjective intent to make a place your permanent home and objective connections like a driver’s license, voter registration, property ownership, and tax filings.

As long as you maintain strong ties to Florida and intend it to be your permanent residence, you can be domiciled in Florida despite extended stays in Puerto Rico.