Didn't want to be off subject with the LLC postings so if this is correct I guess I'll read about it further here.
Florida, there may be other states I am not aware of, allows a Declaration of Domicile along with a mailing address to get residency status. Used to be a determination of residency intent was all that was needed. Florida does NOT have a state income tax though finds other ways to fund their coffers, I'll leave the research to those with an interest. Voter registration helps but the major criteria, as far as I can tell, is destruction of your former states' DL and issuance of a FL DL.
Our former state income tax will fund our Florida home purchase in six years of Fl residency, pretty attractive incentive to live in the Sunshine State
Best...John & Val