Have you ever heard of a "Declaration of Domicile? " A Declaration of Domicile is a legal document that helps establish Florida residency.You are required to fill-out and notarize the form. When complete, bring or mail original to the County Recorder's Office at 73. Domicile is your actual residence in the state joined with your intention to make that state your permanent home. A Declaration of Domicile is a legal document that identifies your principal home in Florida, with tax and asset protection benefits. A Declaration of Domicile is a legal document that shows an intention to make Florida your permanent and principal home. All students who are admitted to a public College or University in Florida must complete an affidavit and provide proof of residency for tuition purposes.