Working with a company in stealth mode that will be able to solve this problem.  

Much more likely to take a hammer to the drywall or steal the kitchen cabinets on the way out.  

Did not steal the property, nor over pay for it. got it at a fair price.

A Multi Family unit I bought in a more transitional neighborhood ( near a church and school ) cost me someMoney early on because someone tried to steal the air conditioner for copper scrap.They didNot get AC but did some damage and the repairs hurt my return rate .

Marie Poe -I market regularly to absentee owners, and I have dealt with a lot of people from California and other high priced areas.Back when property was so expensive in CA, they thought buying a house in Louisville for 80K was a steal. The

I say sadly because I've had tenants move out and steal the curtains. 

Break the electric heaters or wire the meter to steal the electric

If you try to use threats of force right away, the occupants may trash the place or steal the valuable equipment inside before you can get them out.

Many times I won't bother with a sign because then people will immediately know it is vacant and might try and steal the copper or HVAC.

If it is apparently incurable, then you can steal the deal to take a calculatable risk.