Why should the heir's residence unit issue a certificate to prove family relationship in the notarization of house certificate inheritance? Can't the police station be opened? What if the company only opens a resume? You don't need the current work resume of the unit, just copy the employee resume he filled in when he entered the unit into the decedent's personnel file, and let the unit seal it, mainly to check the parents' situation, spouse's situation and children's situation he filled in when he entered the unit, and verify it with the kinship certificate issued by the police station.