Do I move myself and my Mom back in with Dad, so he is happy?

My mother has late stage Alzheimer's-sleeps most of the time with little activity -is keeping her comfortable my best service to her?

If she is in Independent Living, he needs to move there.

If safety is an issue, I'd say stay where you are. Safety takes precedence over happiness in my book!!

NO. Dad is showing some very poor judgment and lack of Executive Function. Granted a husband has first rights over a daughter, but your circumstances are extraordinary and compelling.