Download and complete the Declaration Of Domicile Florida (PDF) form. What steps can you take to prove that Florida is your true domicile?Some steps are obvious. This document is intended to reflect your intent to make Florida your legal domicile. Even this document, however, does not answer all domicile questions. File a Florida Declaration of Domicile to publicly declare that you are a resident of Florida. Domicile is your actual residence in the state joined with your intention to make that state your permanent home. What Documents Can Prove Florida Residency? File a Declaration of Domicile with the Clerk of Court in the Florida County in which you reside. Are you a FLORIDA RESIDENT: Things to do when you are ready to establish Florida as your domicile: 1.