The affidavit may be filed six months after death in the county of residence. Forms can be obtained at the Sacramento County Public ​Law Library​​​ at 609 9th Street, Sacramento, CA 95814.How do we sign an affidavit of domicile if we are the beneficiaries, coexecutors, and successor trustees of mother's estate? Use our Affidavit of Domicile form to verify the last home address of a deceased person to speed up the inheritance process. When and how to use affidavits to change title to real estate from a deceased owner to the new owners after the owner's death. Death of Real Property Owner Change in Ownership Statement. • Copy of Death Certificate. Instructions for Completing Affidavit of Domicile.