His documents are comprehensive & they make up the majority of the ones I use in my business.

Second, you’ll collect more money while doing less work Third you’ll stay legal with notices and operations.

And in most cases, reading a receipt and knowing which property/my management company it is tied to (done automatically by separate accounts linking to my software), even if I don't do a very good job documenting, I have enough to go back and justify almost any expense.  

VRBO is completely uncooperative in this.I am contemplating just turning each of these over to an attorney, sue for the chargeback plus legal fees, and let it go.

It is a platform that provides analysis of real estate documents.

You assume the owner occupant term is not enforceable...what are the legal grounds for that?

Take control of the situation yourself, and if you want her out, then give proper legal notice.  

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

And when you do a lease for MTR, you'll need to put that in the lease in case they stay through high season, spelling out exact prices for each calendar month, so there is no confusion and it is legally enforceable. 

If you need financial help, ask under the "Finance, Tax, and Legal" forum.