My sister's husband (age 86) has Alzheimer's Disease and is not capable of caring for himself. My sister (age 80) can no longer care for him because her health is failing and has been hospitalized 4 times in the last year. They eat very little. He may have a nutrition drink and she a piece of bread ALL DAY. Both refuse to move to Assisted Living even though they can afford it. Can their doctor declare they can no longer live by themselves and recommend Assisted Living?