Legal Question in Wills and Trusts in Texas

Probably not. An agent under a power of attorney can only do those things that the principal (your mother) authorizes her to do. This is obviously a delicate situation, but you need to find a way to discuss the issue with your mother to let her know what's happening. While there are probably a whole host of ways to resolve the situation without involving courts and attorneys, you may ultimately find yourself out of options. At that point, depending on your mother's ability to act for herself (even if it means revoking her prior power of attorney), you may be faced with a situation where you need to seek guardianship.