I am learning about SEC rules and regulations.

Cities and towns have become more strict with second egresses.

I would set strict screening criteria for what you are looking for in a potential tenant and make sure you include that in your rental application/listing so applicants know what to expect.  

There are very strict IRS rules against any kind of self-dealing that you should speak with your CPA/Advisor and get a handle on.

@Marcele Johnson - In Chicago we have a strict ordinance in regards to SD's - a lot of landlords don't want to risk it and take move in fees like @Carmichael Lewis mentioned, but the move in fee cannot be more than half of rent otherwise the courts treat it as a SD and you will get fined for not following the rules of taking a SD.  

Arlington county has pretty decent accessory dwelling unit (ADU) regulations, and Fairfax county also recently eased restrictions (still stricter than arlington), so you may have some success there too. 

We broker capital with lenders who strictly work with investors nationwide.

It seems the NYC real estate landscape is heavily regulated so flipping and assigning contracts (especially in such a competitive and well-priced market) would be an uphill battle...

I’m wondering if there are any restrictions or regulations on short term rentals in the Atlanta area?

I've seen some subtle hints that the resort is strict or controlling in some way?