There is a direct loan program for very low income and housing for the elderly and handicapped. 

I understand Service Animals but they have made getting get an ESA Cert easier than getting a handicap parking pass, anyone can get it.

I believe it will only get worse, with licensing requirements, continuing education, inspections, fees, handicap compliance etc.

install a fire sprinkler system, a firewall between kitchen/living room/dining room with the sleeping area, an emergency escape door in the sleeping area, handicapped bathrooms.

Try your senior citizens organizations, handicap support organizations, your building regs office will probably know who does this as well.Adding a ramp or rail now I don't see as an issue, John is an attorney and seems his thoughts should really be considered so you can sleep well.....

My first deal: the seller was handicapped and had inherited his grandfather's house while he himself was living in it.

I can tell you countless stories of owners that literally handicapped me from making them much more money because they were more concerned with saving dimes while it cost dollars in the long run.

This is directly from the HUD site: In the Sale and Rental of Housing: No one may take any of the following actions based on race, color, national origin, religion, sex, familial status or handicap. 

In one case the person was counting on using the income to take care of a handicapped child and their financial needs.

You’re also not required to have a handicap accessible single family home.