My mother has Parkinson’s and dementia. During a recent hospitalization Dr.’s filled out a form declaring her incompetent and medical decisions fell to POA (my sister). Is this entirely separate from activating the financial POA? It seems to me that if a person can’t make their own medical decisions they certainly can’t make financial ones. Is there a formal procedure for this, like filing somewhere? We are about to sell my mom's house and I am wondering how we handle that. Does she sign papers or POA?