H.L.
Get her a referral to the Mellon Clinic (part of Cleveland Clinic) My mother has had MS for over 13 years now. the Mellon Clinic has done wonders for her. She was at a point she needed a brace for her foot and a wheelchair, she had vision problems and needed a tens unit to stimulate her legg muscles. After being treated there she is now able to walk with only the aid of her cane for balance and does not need the other devices. The treatment for MS has come a long way in those 12 years.
The clinic will also be able to help find a social worker for her who can help her find appropriate housing, and a therapist for her mental stability and file for disability.
Good Luck and don't worry it is not the end of the world, MS is a touchy disease and it does effect everyone differently. Also it does come and go out of remmission so she will have good and bad days.
H.