I just found out my sister went to my father behind my back and basically told him she can take over as power of attorney. This matter was never discussed between us. My father agreed, the state he is in, he will agree to anything- he doesn't care anymore what happens and told me so. I suggested that we share POA and she flipped on me and refuses to even consider the option. My father used to talk to me about concerns he had when my sister was acting as POA over my mom and I defended her left and right. Now, though, that she is so insistent that I not be involved it is making me wonder if I have a reason to be concerned about him too. She is not even open to sitting down with someone to discuss our options together. She is more concerned with help cleaning our father's house. It IS a disaster and I have told her I would help however and whenever it is possible. My children are both 9 and 7 and my husband works night shift and weekends, so being there as often as she can be is not an option. Therefore my contributions to some of the physical labor she wants me to do is not sufficient to her. Mind you, she hasn't even given me a key to get up there when I can, so for now, I am restricted to going when she is there. All she wants of me is the help with the house. The rest is the "easy part" according to her and she does not want or need my involvement. She is getting so angry with me about this and shutting me out, it is going to damage our relationship and she doesn't seem to care. Am I wrong to be concerned?