My question is do I need to be concerned and can I give the ex husband a courtesy call?

I went back to see if I was doing anything wrong and those numbers line up within my excel sheet so really wondering. 

Why do you suck at it?

And bonus, why do you do what you do?

While it was nice to learn, I ultimately realized that my time is much more valuable doing what I do best and it's better to pay for those who specialize in evictions.

I do believe I discern agent commissions though.Once everything is properly accounted for, what was the return on investment? 

I'm looking for suggestions, guidance; how do I word this in a lease agreement?

@Michael K. do you have the property yet?

You can always include the cost of the land into a construction loan but if you purchased it already it can play in your favor.At the bank we do all of the work you basically apply for the construction loan and the Building department along with processing sets up the entire process.

Most likely, the owner is doing all the work for free.