Is there any way to help my aunt? Her 2nd husband is trying to charge her with abandonment, because she can't take care of him any longer.

My aunt is 68, but is disabled from a car accident that happened about 10 years ago. She has to use a walker. Her husband of 20 years has gotten ill, mean and has been hospitalized for the last 4 months. When my aunt told his daughter, she couldn't take care of him any longer, the daughter and her husband are threatening to charge her with abandonment. My aunt claims his daughter has been spending her dad's money like crazy, so she took her half out and put it in an account in just her name. I really don't know the financial situation like who's spending what, but now he and his daughter are furious. They want me to get his money and things from the house, which isn't possible. I have no legal right to any of my aunt's things. I have been doing her errands and shopping, because she can't drive and someone has to help her out. But, I worry they will hire a lawyer and make my aunt look like the villain here, or me. They keep making threats.