I take care of my ex mil (we consider each other mom and daughter) and my ex husband is the POA. He is in the hospital and in very bad health. I've asked him to add me to the POA in case something happened to him, but he hasn't or won't do it. Gran wants to do it because she actually trusts me more than him, but we don't know how to get it done. the ex has surgery on his leg any day now, major surgery, and will be in the hospital for several months.