I know this doesn't specifically answer your question and many may not appreciate my input, but I would really look at investing in geographies that don't have these types of legislation and regulations. 

If you've already considered the purchase price point differences, I'd start to look at property tax rates to compare as well as landlord vs. tenant friendly state legislation for each area you've mentioned or look into further. 

As the description says,  I'm looking for insight on what kind of BBL can be used now to run AirBNB out of my two-unit primary residence under my LLC.  People in my network (who have been in the business for a while) ...

State AG's put those guys down.. and then wrote pretty strong legislation that became law ... like in Oregon you must be a licensed foreclosure consultant to work with those in distress

Haha, everyone call your legislators!

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Check out this blog post with some more info: https://www.biggerpockets.com/blog/real-estate-wholesaling-new-legislation-illinois

On top of that, there is little, if any, legislation to regulate their actions. 

I'm guessing that's legislation (Patriot Act, or any others in say past 10 years) --- or maybe I just didn't know

I am glad to see that the Mayor runoffs will be between two people that realize the need to change things substantially from the present and that both have State of Texas legislative experience.