Have a property inspection inside and outside performed and documented and start eviction immediately according to the steps outlined in the VA state statues.

If I refuse to rent to people like Billy in the future, how do I legally document when I feel like someone doesn't have the ability to take care of a property?

Provide both documents to your closing attorney.

Make sure you retain these documents and you should be fine.

@Jorge Garifuna Thanks for sharing the documents.

I can see documents stored there (like leases, scope of work documents, etc.) so I don't have to ask for those documents when I need to submit them for a loan.  

As long the seller signs all the necessary documents so you can negotiate with the lender, it's probably o.k., but it will still be a short-sale.If you were hoping for a "magic formula", sorry - this ain't it.

If it's not a security threat to you, say this happened and you don't care if it's replaced now, but this is documented so you will fight any damages coming out of your sec dep.

Regarding deeding back to the LLC- You could trigger a due on sale clause in your loan documents if the property is deeded back to the LLC.  

You need to keep documentation of everything she has done to possibly cause this and what you have done to mitigate her concerns.