If your father transferred the property in your name during his lifetime, that is the end of the matter. It is yours to keep. There is no need for any will or family settlement as the property was in your name on the day of his death. If it is inherited property which comes from your grandfather, then your sisters can demand a share in it. But the simple method is to show a token loan to your father and the land as being transferred to your name in lieu of that land. That takes care of any claims by your sisters.