Also, mere arrest can no longer be considered in a background check.While disparate impact was important in the low income housing tax credits case that gained Supreme Court recognition for the concept, it was not a Fair Housing or a zoning context.  

After talking to the DA they arrested the tenants for Extortion!

I had the realtors and brokers license stripped and another guy ended up getting arrested by the FBI and is currently facing prison time. 

I had to involve the police when first floor ran screaming at me in my car on a public street, yanked open my passenger car door while I was in it, and entered the car screaming at me aggressively while I was calling 911, (all because we had made every effort to avoid a confrontation with her), but the police only went to warn her, did not arrest her.  

Sex offender registry.Count, city and state arrest lookup.Inmate search.County civil record search.Several other websites that search for infractions.Google.If they have an address in another state, city, etc, I check there for criminal activity as well.I talk to their last/current landlord and check tax and registrar of deeds to make sure I am talking to the right person.That is all before I even think of running their credit.  

They are not worth the paper they are written on and this guy should be arrested for ripping people off.

Whether you imbibe or not, it's pretty cool to walk into a shop and see for legal sale a product that will get you arrested in a less progressive state. 

The police arrested them.

I wouldn't do anything unless the police dept said its a issue,, you don't have proof and if police don't arrest then she probably wouldn't have a criminal report filed against her..I'd be aware of her actions and if you feel it's within your better judgement to let her move on just give her proper notice, she's month to month so your in perfect position to do a non-renewal you don't need a reason it's just you decided to not renew her lease again.

You can also ask for a "no trespass" order so she can't return without facing immediate arrest.