To establish a new domicile, you need 1) a physical presence, and 2) a truthful, concurrent, intent of making the new state your permanent place of abode. An affidavit of domicile is a sworn statement signed before a notary public establishing the legal domicile of someone who has died.Domicile is the place a person intends to establish a permanent home. Simply put, your domicile is your home—the state you consider your permanent place of residence. Domicile is relevant to an individual's "personal law", which includes the law that governs a person's status and their property. "State of legal residence" (SLR) and "domicile" mean the same thing, namely your true, fixed, and permanent abode. An affidavit of domicile is a legal document that certifies the residence of a deceased person.