My grandmother has Alzheimer's/dementia. She was placed in a nursing home a little over a year ago due to a a fell that caused her to break her hip. My mother can no longer tend to her every need. Both of my mom's brothers have pretty much distanced themselves from the situation, so the the entire burden falls on my mother. My mom never worried about a power of attorney for her, and now she needs one. My grandmother had dimentia/alzheimer's and isn't healthy enough to sign one. What are the steps we need to take to get a power of attorney for my grandmother?