You might want to try the NACOG.org website.
When you are ready.. you might also go to http://prescottforeclosed.com/

I also have not heard of special loans geared specifically to folks who may be disabled, but there are still first time buyer government programs where you can come in with little or no down and ask for up to 6 or 7% from the seller's to pay for closing costs. Remember...a first time homebuyer is one who has not bought in the last 3 years!!

There are grant programs, but I have not heard of one being geared toward someone who is diabled. If you are a veteran, the VA loan offers benefits if you are diabled for the VA loan.