My Father has Alzheimer's and my sister brought him from his residence abroad to California. I cannot see him. My father does not recognize the family members, yet my sister and her daughter deny that he has Alzheimer's. I am concerned that he was taken from Kaiser care and I do not know who is taking care of his illnesses. He sufffers from type 2 Diabetes, Dementia, Alzheimer's and prostate problems.
I think the tips upthread are good. Once family members really get the chance to see what it's like to care for a senior with disabilities, they often bail. It's a lot of work and expensive. Maybe she'll ask you to get involved once she sees how tough it is. She'll likely need help.