There is a very strong group of mental health professionals at Dartmouth Hitchcock. They also have a crisis consulting group, maybe a good place to start.
My cousin did her residency in psychiatry there and did research for several years after that. Talking to her every few years just blew me away the stuff they were doing there.
My Dad would go there for his medical issues. They lived in NE VT , about 90 minutes away.
It’s a fascinating place, almost in the middle of nowhere.