In short (because it is a looong story) my aunt moved in with my independent widowed grandmother 8 years ago, temporarily. Well, she never moved out and my grandmother developed dementia during the next two years of her living there. During this time when my grandmother could still get around but was very confused, my aunt took her to the bank and got my grandmother to give her sole POA without telling anyone in the family. (My grandmother is Polish so she did not always understand English well to begin with, then add to that her confusion) My mom (aunt's sister) was crushed because there was no discussion. My mom only lives down the road and to note, my grandmother is quite rich. My aunt lives rent free but to be fair, does all the bookkeeping and hiring and firing of caregivers etc. My mom complains to me all the time about this POA issue but when I tell her to confront my aunt she says "The lawyers already said there is nothing I can do to change that POA." Is this true? I am really tired of the sparring and hearing my mom complain but yet still be so close and friendly to my aunt. I find it all weird.