My sister's husband has POA (complicated story). I spend a lot of time with Mom and have been her primary caretaker for a looong time. She is now in a NH. My sister has forbade me to talk to hospice of her doctor (because doing so validates that I know more than she does about my mom's medical needs).
Does a POA have authority to tell hospice not to talk to me about my mom's health needs/next steps?