@A Schwartz While you already received numerical feedback to your question, your best bet is to reach out to mortgage brokers and speak with them to get a fully detailed answer. 

Bonus Question: What are some great lakes to fish other than Wallenpaupack that produce a nice variety of fish.Sorry for the lengthy question but any feedback will help me with my decision. 

Then plans change for numerous reasons and the PIN can be left to exist.

I have numerous Turnkey rentals that cash flow nicely.

In the midwest there is a variety of different local economies and housing markets.

Though I know nothing about your submarket, I can tell you that Airbnb can work if you understand the market dynamics very well because some cities may not do so well with vacation rentals due to a variety of reasons and other cities thrive. 

Do they only have one plan, or do they offer a variety of plans? 

It's hard work so its often an area where people give up and or take short cuts and that seems like exactly what happened here.The fact that the floor has been "refinished, stained, sealed" numerous times is not an issue because guess what....you can just sand through it all!

While I'm by no means an attorney, of which you should consult for advise, my experience and in talking with numerous real estate attorneys if you have a property in an LLC and you get sued, the party bringing the suit can look beyond the LLC and bring suit against you personally or the controlling members.

Its by far the best thing you can do in real estate tax wise is that 500k tax free we have done it numerous times on our CA and Or homes.. over the last 40 years not always 500k but some were and some were darn close..