This is defined by any "disability" that impairs normal functioning and that the person must take medication or treatment for.

have a physical or mental disability that substantially limits one or more major life activities—including, but not limited to, hearing, mobility and visual impairments; chronic alcoholism (but only if it is being addressed through a recovery program); mental illness; mental retardation; being HIV-positive, having AIDS or AIDS-Related Complex

., a physical or mental impairment that substantially limits one or more major life activities?

., a physical or mental impairment that substantially limits one or more major life activities? 

I let him know that we can not afford to have the apartment vacant and that we needed all of his items out.I have not seen anyone to move belongings, and I suspect that since he thinks people in this city are out to kill him, that he may not be willing  (or even be too impaired) to drive the hour and a half over here to move the belongings.with that said, we have checked the apartment to make sure stove is off, water isnt on etc etc, but at the end of the month if nothing has happened, what do I do with his belongings??

Seal it before the end of the 2nd for sure since that is when judgement becomes impaired. 

I am visually impaired, and it can sometimes be a little difficult to travel to multiple properties in a day or over the course of a week.

Dealing with people, well this one has always been an issue, I dont have any tolerance for "intellectually impaired" people, after working an airline ticket counter for 12 yrs I have pretty much put the majority of the public in that category, I think i have pretty much seen and heard it all.

Not deliberately or negligently destroy, deface, damage, impair or remove any part of the premises or permit any person to do so; and shall not engage in any illegal conduct on the premises; and Act and require other invited guests on the premises, to act in a manner that will not disturb the neighbors’ peaceful enjoyment of the premises.

You would also need to know if there are any local impairments that might not be disclosed in the ad.