It is scary, but fun. 

Have fun!

Unless you're up for another challenge holding and renting creates headaches and PM "fun" you don't have time for. 

What I've seen before is the only time rules are enforced are when neighbors get pissed (ie STR neighbors).I would side with caution on this, especially if it is a newer built community where the rules are fresh with people. 

Doing it alone is no fun.  

And it’s definitely not passive for me or most.4) I’m in REI because it’s fun, thrilling, and meaningful, and hopefully profitable.

While we are reading about fun cases, there is a frequent buyer in Texas that just took a case to the SCOTUS, but they declined to hear it. 

@Jen AndersonI have fun with them.

And I actually think I have as much fun finding the deals and seeing the transformation of the houses we do as I do collecting the rent checks, that it would be really hard to give that up. 2) How many of those do you have paid off, if any?

You'll probably lose a little, but at least you'll be done with them and can start fresh.