Finally, an affidavit of domicile is used to transfer securities and stocks of the deceased to his or her heirs. This Affidavit of Domicile form is essential for establishing legal residence after a decedent's passing.In Section "L" of the Court's approved SEA form, you must list the shares of each distributee in every possible type of property. The purpose of an affidavit of domicile is to verify a deceased person's permanent residence.