Landlord responsibilities for disabled tenant

[Nick Krelwitz]

Hello,

I own a single family home and am looking to have a family sign soon. They have a disabled person living with them, that they take care of, am I responsible for following ADA codes? I am not sure whether or not I can ask what kind of disability they have to see if I can accommodate at all. Does the disabled person sign a lease aswell if there disabilty money pays for some of the rent? Has anyone ever been in this situation?

Thank you 

Nick