I have five siblings.Our grandmother passed a few years ago.Leaving everything(property) to our father who had no spouse.Two weeks after our grandmother passed,our father passed suddenly and had no will.A family member was executor of said estate.But we all gave permission for our younger sister to become adminitrator.The family memeber has not been able to give burden of proof that we dont have rights to property.Its been over five years now.What can we do since dad had no will.Who would the property go to!