Is there financial aid to help pay for a room addition for my crippled dad?

Check your state Web site under "aging Services" or something similar and you should find contact information. Once you find someone in your community, you may be able to find some help. Frankly, I'm not too optimistic, but much depends on where you live. It doesn't hurt to check all angles, and that is easiest by going to a local source. If your community has an Area Agency on Aging, they may be able to direct you, as well.
Carol