Two weeks later I stopped by the unit (was passing by and decided to take a look) and found that someone was using the shower and leaving food and clothes in the house with visible intent to return.

I got all sorts of calls, usually some were just curious, some were angry, every month someone called the police, the BBB and one time even the FBI on me, because the term "cash offer"" seemed suspicious to them - drug money LOL A place officer called me on behalf of a resident asking me to stop mailing them, to which I replied: sure whats their address and he said: he would not give me that information.. 

This type of tenant will walk all over you in the future if you don't stop it now.

All sarcasm aside, no, please stop, and don't do this.

Why would they stop if nobody sues or gets the police involved?

@Joel Bayer- I stopped using the BRRRR calculator a while ago because it doesn't handle complicated financing scenarios like this well. 

Just want a software that does a great job handling the overall operations smoothly, a one-stop-shop for all PM needs. 

I've built several homes in the area and stopped targeting that zip code entirely several years ago.

I would be beyond humiliated to come to the office that many times in a row, not caring about bothering someone or stopping them from what they are doing to have them walk their fat pregnant butt to their home to let them in all because they dont care about anyones time but their own!

@Bruce Schussler   I am always suggest my borrowers stop at 60% loan to value when utilizing this strategy.  60% is the loan to value where the loan would qualify for the best possible rate.