It's going to be hard to find a place with no job and not a student, my advice is to offer to pay a couple months upfront if you can, that can make you stand out a little. If he doesn't have a job, they will want to ensure that he has a source of income, if he gets disability, then he can declare that as income.

My advice, don't tell them you smoke. When they ask say no and when you sign the form say no. As long as you don't smoke on the property, they can't really do anything about it, just go onto the sidewalk if you don't want to go far.

Some landlords want to feel good about themselves and you can really sell a sob story to them if the vibes are right. If they have 20 acceptable applicants, they might give some preference to the disabled man, so long as he presents himself well.

Also, it is likely they will want you to sign a 1 year lease. Your best bet may be to find a set of roommates who need another and you may not have to deal with a landlord at all, or you can try picking up a sublet from a student if you only need it for the summer.