I agree with dragons sad sister.
I think making your mom your first priority and your dad the second is very wise. You are there to help them. I hope your mom is not in pain and you like the Hospice team.
As for AS, maybe since you will be there, another sibling can be nominated to determine what your Dad wants to do and help make it happen? Whether it is a notice of eviction or whatever. That way you are splitting responsibilities and you can keep your focus on what you are coming there for... and it is not AS.
Peace,