If not, after giving warnings, I'd give them notice, and negotiate them out.

You may never collect, but you can at least give them a consequence, and it won't cost you much in the fees to sue in small claims court, and with the judgment on their credit, at least you can warn future landlords/lenders.

He warned me to never tell my room-mates that I owned it otherwise they will take advantage of me, he gave me a lot of great advice.

I have had to go the cheap route with warning letters on this renter from attorneys to get him to pay rent on time and could never afford an attorney to evict him.

Even if I'd warn the applicant that the place wasn't ready and that it was going to be painted, new carpet, whatever, and they'd insist that was no problem, they just wanted to get an idea of the space, etc., they inevitably would look worried about everything, and start pointing out unnecessary fixes that they thought should "also" be fixed.  

Auto accidents on premises are not a landlord liability matter, generally, I say generally because you can be found negligent if you fail to provide reasonable traffic notices, signs or warnings for drivers.

The benefits of M2M is that you can raise rent anytime (with proper warning) and if tenants misbehave just give notice that you are not renewing and they need to leave (and they know it). 

So I warned him he's on thin ice, and trying something else like this, we'll evict.

Hey @John C.Two questions:Have you given the occupants a written warning to stop smoking in the unit at any point during their tenancy?

No call no warning.