You should check out Vermont or Massachusetts for long term service options. They are good about paying for school until the age of 22 in addition have many group home options for older than that.
There are several school age programs in the area that specialize in mutliple disabilities: The Walden school at The Learning Center near Boston, Americ
an School for the Deaf in Hartford Conn, and William center at Austine school in Brattleboro vt. The William Center has recently launched a specific deaf and Autistic program and currently has some avalability. It is the only specificly deaf and autisic program in the country.
The website for the vermont program is:
William Center at Austine