You need to ask questions and understand polices of the new PM BEFORE you get bit again.

It was the Police Chief and not the Mayor who spoke, so I do apologize for the error of thinking it was the Mayor. 

No towing company will touch it without a title and the police won't do anything including give me the name of the owner.

That unauthorized people not on the lease cannot stay their.That if they have any visitors for longer than xxx days it needs to be approved.Get a crime free/ drug free addendum and get it passed out and signed by every resident today, so you can enforce that addendum.Have neighbor that alerted you to call police if they smell or see anything that's an issue. 

Be clear that if they don't you will call the police to have them escorted from the property.I always recommend a property manager for situations like this.

Mike bought over 100 properties while being a full time police detective in Louisville, Ky.

I would add, be sure to have the lease nearby in case the police get involved.

No joke, on day one of investment home ownership the fire department, police department, gas department and water department all showed up at my house.  

I saw on your LinkedIn profile (yes I know stalkerish) that you're currently an MBA Candidate and work for the Dekalb County Police Department as a trainer.

That isn't going to be the focus for police departments as a top priority.