What does my mom do about dad?

My father has dementia/Alzheimer's and has had it for a while at least 6 years. Things have gotten worse with the verbal abuse towards my mother I believe she has finally seen the light. My two sisters and I are in the process of finding a place that specializes in memory care. He needs to be in a facility so that mom can get some form of normalcy in her life. This disease is deteriorating her. Is this the right avenue to pursue?