Residents file Form 760. In Virginia, a simple declaration of a change in domicile is insufficient to relieve a domiciliary resident of Virginia income tax requirements.Virginia has reciprocity with several other states. How to fill out the Residency Domicile Determination Form Virginia? How Do I Fill Out an Affidavit of Domicile? You MUST have lived in a state to claim that state as a domicile. To establish Florida residency, you must complete the following four crucial steps: File the Florida Declaration of Domicile. Obtain a Driver's License in the New State and Register Cars and Boats in the New State.