Even if you get a professional radon test which reads the levels over a period of about 48 hours, they are relatively inexpensive ($150-$250 in my experience).

While I am not a full time flipper *YET*, I have strong knowledge and experience in the architecture, design, and construction industry.

No way, I would attempt this with my experience. 

My experience suggests that if cost is a deciding factor, you probably don't need an LLC.

As they've gotten settled the experience has become a nightmare. 

I appreciate the detailed suggestions and personal experiences you shared.

Quote from @Eric Hajdu: I am certainly not a tax expert, but fwiw, I just looked at my closing statement from the purchase of a Brooklyn multi-fam and as purchaser, I paid the following taxes:Transfer Tax Additional Transfer(mansion)taxTransfer Tax Supplemental NYC(mansion)taxMortgage Tax 1st mortgage Thank you Eric, the real life experience is the best reference!

We're close to the finish line on an out of state BRRRR project; since most of the BRRRR chatter is from people that are thinking about it or people that have something to sell (looking at you, Ohio crew), I'd thought that I'd share a realistic perspective. 

Andrew,Man so much good knowledge has been dropped on this topic already so there isn't much to add other than its all on your personal experience level as well as your willingness to take risk.

I would also suggest you reach out to someone who has experience in the BRRR method of investing.