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 legal document that verifies the primary place of residency of someone after their death.The signed and notarized Affidavit of Death should be filed in the property records in the county where the deceased owner's property is located. How do we sign an affidavit of domicile if we are the beneficiaries, coexecutors, and successor trustees of mother's estate? All you have to do is fill out our easy-to-understand questionnaire.