father and his mother recieved14aces of his inherited property

all other family menber sign over all rights ,the father and mother build home mother past two years before the homes paid for father paid home mortgage off but ,mother wills place home a will requesting it to be family home so after fighting with family menber father sign the mother half of the land 7aces to family and deed all his to the son !what step or action must the son do to place his name on the property