Has Hospice even been discussed as an option with the family though?
I agree that hospice care is great (I'm a volunteer), but it might not be what he needs just yet. Can your mother afford a companion type person to come in a care for him during the day? My sis did something like this for a while. She would go into the family's house to watch their mother. She did light chores (tidying, laundry), fixed this lady lunch, and just basically visited with her for about 3-4 hours. It was a set of eyes there just in case something happened while the family was away working. We have something similar for my mom now too.
Call social services and patient advocates and see what might be available through the state.
I'm sorry your mom has checked out. She's probably exhausted & overwhelmed herself....and older people do not deal with stress as well as they did when they were younger. :grouphug: