According to Florida Statutes §222.17, the Affidavit of Domicile must be filed with the clerk of the circuit court in the area where you intend to reside. Steps You Can Take: Submit a Declaration of Domicile for your county.You can find these forms online. How do I prove my address in Palm Beach County? ¦ Write "final return" on your last former state income tax return to put them on notice. ¦ Bring your bank and investment accounts to Florida. We have summarized certain local procedures and laws which may be helpful to you in preparing to live in or establish domicile in Florida.