Stop in for a cup of coffee

We got drama at one of our rentals this morning. Wife threw husband out. In theory I will collect rent in cash. Guessing they are sub letting out garage to yet another family. I get to do a walk thru this morning. I am guessing no less than three families on site. Arghh
I don't want to be a land lord. Talking to a friend yesterday, he owns a commercial building but the rules are different there. The bakery is 3 months behind on the rent. He had the lawyer send a registered letter. Gives them a few days to come up with the back rent. Dan will change the locks tomorrow and when that happens, he owns the contents of the bakery as collateral for the back rent. You hate to be an *** but he has given the gal second chances before.