When I started trading stocks in 1988 commissions were 4%.

I was thinking of a VA also.Like Luke said have business hours and get back to people when your "open".They can call 911 for a real emergency.

Establish a clear process for handling these requests and keep an emergency fund for unexpected repairs.Tenant Relations: Communication is key.

What new trends are emerging?

From my perspective, when I started house hacking, I really enjoyed learning about all of the trades, but as you said-  it becomes harder to do all those things while building.  

Some may want to move and then you'll be left with an older, used mobile home which you may have to fix up or trade in for a newer, used mobile home depending on the condition. 

I would also advise that you keep an emergency stash of cash in your regular bank.

Coast Guard, specializing in Federal Law Enforcement and Emergency Response.

I'm seeing renovated inventory sit, then trade well below list in a large portion of the ATL metro. 

This isn’t an SEC traded investment, no liens or 1st positions, no personal guarantees on behalf of the GP, If you go back thru and show us your deal analysis versus your checklist you will probably see an investment marketed at 14% return which should have been Risk adjusted down to 8%.