We are seeing very minimal movement due to inventory constraints in the Valley! 

I should expect minimal maintenance. 

Centralizing your staff and moving parts in a single system will improve your operations and guest experience because it will help minimize the chance something will fall through the cracks.

However, when I had the choice to go to $5,000, the savings were very minimal, and it would have taken 10+ years to recoup if there was ever a $5,000+ loss.

Prior to the recent rate hikes, it was possible to purchase a property, rehab it, extract investment via high LTV refi, and have some (minimal) cash flow (infinite return) while experiencing crazy appreciation.  

. - LLCs provide minimal legal protection in case of an incident. work with an asset protection attorney to come up with a better plan if they are that concerned. also have great insurance and an umbrella policy. 

They will place them with minimal screening and they cause lots of maintenance issues and do not pay rent in time.

And if these guys are getting with extremely minimal funds, limited equity and are doing this at scale(80+ properties) then I take back 10%, even 5% will wipe these guys out.

Would experienced investors stick it out or minimize losses by selling?

It is absolutely possible to manage your rental yourself from a distance (mine are 200 and 2000 miles away from me, respectively) with minimal time investment.