Use our Affidavit of Domicile form to verify the last home address of a deceased person to speed up the inheritance process. An Affidavit of Domicile is a document that acts as a written solemn oath that verifies where someone lived when they died.Description of Form. The Affidavit of Domicile is a sworn statement verifying a deceased person's state of residence at time of death. All you have to do is fill out our easy-to-understand questionnaire.