And sometimes you have to change your strategy based on what's available.  

Looking for some input from this vast base of knowledge on the pros and cons of setting up an LLC or S-Corp for my company structure.

There are a handful of websites where you can purchase lead lists and populate lists based on your criteria.  

Based on where the properties I have purchased are located (PA) I would be required to pay a significant transfer tax to move them into the LLC at this point.  

Do you base your ARV on the actual finish level you plan to use or the full potential of the house with upgraded finishes? 

Just want some opinions based on what people are looking for.

Presumably, your Airbnb rates would need to be a pro-rata daily rate based on the prior rent, which would probably be too low to be worthwhile for a periodic rental.  

On BP, you not only learn how to get deals done correctly, but also have an opportunity to network with other real estate investors and learn form the informative forums based on BP everyday!

Are these good ballpark estimates to base my search from?

I guess each buyer will have to determine for themselves whether or not the LLC is financially beneficial based on the savings and benefits the LLC could provide them versus any taxation drawbacks.