There are a number of programs and grants available. I am not sure if there is one specific for people that are disabled but know there are programs with lower level incomes. The best place to start is with Select Milwaukee at 414-562-5070. Select Milwaukee understands these programs and can explain what the programs offer and the requirements for the prospective buyer. There will be education requirements and other things you will have to do.
Wish you the best.
First Weber Group
Certified Distressed PRoperty Expert