My daughter has been in a wheel chair since the age of 12. She got a service dog "Kelsey" about 7 years ago and they have been inseparable ever since.
The change in her attitude after she got Kelsey was tremendous. It's amazing what difference the extra independence adds to the quality of life.
Her dog came from "Amazing Tales" in Oxford PA. They get all their dogs from the local animal shelters. Kelsey was found in a ditch alongside the road. Both my daughter and Kelsy have had their lives enriched immeasurably by finding each other.