The Florida Election Code does not define the term legal residence, he said. As such, it is up to the SOE (supervisor of election) to determine where a person lives.
State guidance on the issue notes that legal residency is not defined in Florida law, but the courts and the states division of elections have construed legal residency to be where a person mentally intends to make his or her permanent residence.
Evidence of that intent can come from obtaining a Florida drivers license, paying tax receipts, paying utility bills for the residency, claiming a homestead property tax exemption, receiving mail at the address, declaring a county as domicile and doing other activities indicative or normally associated with home life, according to the guidelines from the Florida Department of State.
A business address is not typically a satisfactory legal residential address but if the person resides there despite the zoning ordinance, the address could become the persons legal residential address, the guidelines read.
more at:
https://news.yahoo.com/mar-lago-taxed-private-club-233900115.html