Report them to Section 8 and send any uncollected charges to a credit reporting agency.

I use Cozy, they partner with a site (I believe an Experian offshoot) to run background and credit checks.

You'll be better prepared, you'll have less heart ache and you won't have to deal with the struggles of some management company that thinks what they did is "good enough" while you're taking a beating in the wallet and possibly overseas. 

I also just wanted to let you know for the sake of your calculations, I'm a loan officer and (depending on your credit) even with a 15 year note, you'd be lucky to find a 4.25% mortgage on a regular sfr with no points nowadays, let alone a jumbo loan like this would be.

Ask how they prepared the property for showing.

We have  had properties all over the state and the preparations and damages are a pain.  

Do you run background/credit checks? 

I am currently preparing our vacation home in Vermont near Mount Snow to accept vacation rentals.

Worst case they hit your credit w a collection, which won’t hurt it more than 10-15 points.

If you want to be an investor, despite the no money down stories, you will need capital/credit or someones else's to get started.