Have contracts or covenants that keep newer homes there and keeping yards clean.  

LTR tenants are required to have the home professionally cleaned. 

I'd personally say pulling your water heater out and replacing with a wall mount on demand one, would be worth the cost to have in unit washer dryer if you are staying there or renting it, it would be worth it.its always worth doing the big stuff well and correct even if you are cleaning up after someone, the long term hold always prevails, its just a little frustrating front sometimes, but hang in there!

This was a clean foreclosure property, which is usually difficult to find.

Start with one that might need some clean up and go from there.

The timeline is years for clean up and decades for reconstruction and recovery.

I know they are crazy guest friendly but this seems over the top.Guest didn't deny it....responded with "I payed the cleaning fee, why would I clean up?"

Because Airbnb only makes money when the guest books on Airbnb.Hence, they want the price to be cheapest on their platform, so people book on Airbnb instead of elsewhere, and want their properties to be able to compete with hotel prices (even after cleaning fee and service fees). 

Even if it's cleaning rooms, get a feel for the operations.

I would consider getting out of property management and getting into cleaning IF you think they are doing better than you .