Also, just because he has PTSD dosn't mean he is violent. 

I've had social workers working for agencies who routinely defend their client's behavior, as if violent, argumentative behavior, domestic violence, illegal drug use, violation of lease terms, and of course, always combined with non-payment of rent, were just a "cultural" difference. 

They are all bigger, stronger, and more used to violent behavior ...

They can get angry and violent at the piece of paper!

It's hard to find professional property management to manage the property for you in these areasF - this is the war zone: where 90% of the violent crimes in the city happens, almost every other apartment or house is boarded up.

Violent crime is generally only in a few very bad pockets, but petty crime and theft and break-ins are common.

I would screen out part-timers, enforce 3X on rent which a working class couple should be able handle, no felonies whether violent or not, evictions, etc.Your COC will be higher, be okay with no appreciation but have major equity in lower priced home with higher down payment amount

He's got nowhere else to go, no family, no money, and a violent felon record.

Now the victims could possibly sue you because you knew he was violent and making threats but you did nothing.

If the second story is true, she may be scared of a violent ex-boyfriend.