1. The original owner of this property was your great grand father who made a will thereof in favour of your grand father who in turn made a will in favour of your father. 2. In terms of the will of your grand father your father is the absolute owner of the property. He can sell, gift or make a will of the property. 3. Your aunts have no share in the property, 4. If your father does not make a will of the property during his life time then you, your mother and your siblings will succeed to the property equally after his life time.