Hi - check out this article published on BP last year that addresses your exact question - and goes over all the refinance options and pros and cons of each for BRRRR!

I am not sure what area you are in, but if it is a popular area there is likely stiff competition. 

Typically you need 30% down, expect a minimum of 3 points, loan amount greater than $100k and the term is typically amortized over 20 years.One Time Close Construction Loans: These are becoming more popular, but can absolutely be a pain in the butt.

I came across this article about the recent Salt Lake City Council budget amendment that includes money for the city to monitor STRs via some type of software.

And I would HIGHLY recommend to read this article I wrote for Bigger Pockets on how to find good lenders that you can find HERE.

My realtor sent me this same article yesterday and I was ~thrilled~ that I might be able to put low money down without going the FHA route. 

I’m looking for initially maybe 5 books and/or articles that will help to greatly broaden my knowledge on this industry and the investing process.

Also to state that together with our investor network here in Spain, we rarely experience squatters and that these articles sometimes are being blown up.

Also gave me his Business articles of incorporation documents, I even went on the IL sec of state website and it is an active business. 

Contrary to popular belief, this is not set because I believe it will give me a higher return.