And she has photos and invoices for a lot of the damage to the wall.

I've been pretty dang discouraged since the start of 2017.

Maybe hire out the walking and you manage the scheduling/invoicing.

They weren't able to work it out (not sure how hard they tried or even if they tried) so I invoiced B, C, and D for A's portion of the deposit, and to tell me if anything had been damaged prior to their moving in (nothing had). 

My PM uses Appfolio (which seems, on here, to have it's share of fans and detractors) so it's easier and quicker for me to login and review rent collections, expenses, invoices, etc.  

Dang it.

Now it's all over the web that if a guest trashes an airbnb property, hosts can't do anything so guests are more and more aggressive, and finally, they give you hard time to refund damages, require invoices for everything, and only refund physical damage.

@J Scott  Dang! 

And for contractors, we pay right after we get the invoice. 

You will want to see the rent roll, expense report, IRS Schedule C, Tax history from the assessor, Insurance policy and invoice.