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

But, this is first and foremost a business relationship of necessity, and a bit of a survival-of-the-fittest mentality.  

When you own hundreds of units, there will be a chance you will get a tenant with a mental problem.

If someone in the United States did what you do, they would be subject to a Fair Housing complaint, unless they fit within the size limitation exemption.Neither the codes in the US or Canada state that mentally unbalanced applicants have a right to  preferential treatment.

However, I am also of the mentality of doing what I say and saying what I do.

@Susan Maneck  yup I am talking about Jackson both sojac and nor east jac.. sad the way some folks treat these animals.. its no wonder pits get visicious its the thug mentality I guess

And if you have an empty unit and you say no to a current tenant who wants it - and they decide they'd rather move if you say no - now you have two units to find new, unknown tenants for.I will never understand the  mentality of losing great tenants because you won't let them transfer in-house.  

Yeah, zillow says it should rent for $1,400.Still, I have this mental block that someone with a good job, would buy their own house or only be in the area for a short period.Though the property management company can find a new tenant as needed, that cost me the month the tenant left, and the month for finding a new tenant. 

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

Having all of my application material online helps weed out the Luddites, drug dealers, conspiracy theorists, and other "cash only" type mentalities.