Hi, we have ancestor property in the name of my grandfather. He has two sons. Both of them died last year. My father is one of them. There is no will written for this property. My uncle ( my father’s brother) does not have any kids, but only his surveying wife. Can she claim for a share from my ancestor’s property. We are very much taking care of all her needs, but she wanted to sell her share to pass on that money to her brother who is a gambler and drunkard. How can we protect our ancestor property from selling it?