my father sister left her land to be divided with her sister and brothers my uncle sold the land and never gave my mom a dine, what can i do.

Your mother needs to hire an attorney. Unfortunately, there's really nothing I can tell you in this kind of forum that will give her any help. If your father was actually left an interest in the property, and if his interest was left to your mother at his death, then she likely has a right to a share of the sales proceeds. But that may not actually be what happened. There's no way to know what actually happened and whether your father actually received an interest that he was able to pass to your mother at his death without seeing the underlying documents. Your mother needs to consiult an attorney who is experienced in working with estates, including contested estates, as soon as possible. She shouldn't keep waiting. Best wishes to you and your mother.