He eventually agreed to remove the sign from our property...Here’s where the potential lawsuit comes in.

It appeared they had selected three potential sites as options and where in the DD/ negotiating phase with the city and ownership entities. 

Nonetheless, still a good cash flowing market...just need to keep your eyes open to the potential risks and be conservative on your anticipated rent.Anyhow, best of luck to you!!

@Rocky Griffin another thing to consider, and be concerned with is... by letting him "live" there while he is working, if it has been 30+ days, he is legally a "tenant" and you may potentially have to go through the eviction process to get him out.

Increasingly I am seeing potential tenants come through Zillow versus Craigslist.

The paintball field would have plenty of "teenager type" positions as well as some management of those teens, potentially by older more responsible teens, marketing, maintenance, etc.

This is to account for potential mail delays when not the sender's fault.

@Jeff Unruh Mecklenburg County, NC has a very robust online tool for search tax foreclosures to include narrowing searches by property type. http://mapserver.mecklenburgcountync.gov/foreclosures/Vacant land presents a whole host of potential problems that may inhibit a quick flip.

I have read the BP book so I know how important/ fragile  is can be to reject a potential tenant  the right way.

Assume it needs a furnace...add up the potential and needed repairs, plus financing to include hold time and make your offer.