Legal Question in Wills and Trusts in Texas

Re: want to sell land

Something needs to be done to settle your aunt's estate. Her interest in the land passed to her heirs in her will, or to her heirs at law if she didn't have a will. This project will entail figuring out whether she had a will, and whether it was probated. If not, you'll have to figure out who were her heirs at law under the laws of the state where she died. Those heirs now own her portion of the real estate, and in order to sell the whole piece of land, they would need to join in the sale.

You should research some family history, then consult with an attorney to figure out how to fix this.