I'm sure there are many special interests at play.  

I wasn't really concerned with it until the 5th or 6th time it happened each time stopping playing loud music and cursing at me.

I am also struggling to wrap my head around whether being our own landlord is a double bonus in this situation, and should make us willing to accept lower returns , or even negative cash flow at first, because otherwise, our $36k annually in rent is just gone every year. 

The neighborhood had been trending in an unfavorable direction and the property had been sitting for a few months so we decided that renting it was a smart play. 

That way if you're renting to a family of four (mom/dad, 2 kids) that gives them an extra room for guest/play/office etc.Do some inexpensive kitchen upgrades (paint cabinets, new hardware, backsplash) and put the rest towards the new room.

So you really, really need to play the exit game and look at each unit and say " If I approached this tenant for a rent raise and they had to get out how much per unit would I have to put in to land a new tenant?"

It plays a very minor role.

Buying TK is a long term play. 

Its a tough game these guys play.

Another bonus is that it has tutorials for how to use and apply these calculations using real world examples.