He had recently got kicked out of the HOA For fighting with the neighbor so he was renting a room somewhere down the street with his disability money so they just couldn't afford to stay in that house and hadn't paid a full mortgage payment in 6months.

and he is on disability with an income of around $4000 monthly and a candidate for bankruptcy.

Many disabled senior tenants who are on a fixed income and who have been residing in the complex of 16 units from 3 to 20 years month to month.

However, upon inspecting smoke alarms in the past, I found a large number disabled by the tenant. 

It's not uncommon for a parent to be the representative payee for their minor child who receives disability benefits.

My tenants and myself, I get error messages that machines are "in use," or "disabled." 

I suppose you don’t want any backlash for someone living with a disability. 

If he has some sort of medical insurance, either through his job, an exchange, or some other route, he should make a claim on that policy, as far as coverage for the injury.This would be covered by some sort of short term disability policy or an AFLAC type policy. 

The only exception is if you are a disabled veteran, you can have the funding fee waived.

I'm legally disabled and don't feel that my $860 a month is going to provide my son with a leg up on his future.