The firm application is here: https://www.ncrec.gov/Forms/Applications/FirmLicenseApp.pdfThe way NC REC rules work (as opposed to NC statutes in Chapter 93A) are spelled out in 21 NCAC 58A.0502 entitled FIRM LICENSING.

Every state, county and city or municipality has statutes, or specific laws, that govern these types of transactions.

We know the investor that sued the City of Eastpointe to force them to create the program to meet Michgian Statutes and even contributed to the case.

As @Kyle Kadish and @Mark Creason said 1031 is a federal statute that you can do in any state to defer federal tax and depreciation recapture. 

It's iffy.IF you purchase a property at a tax deed sale, a key tactic is to remember to not draw attention from omitted creditors (at least until the statute period has ran out).

Nolo has the best starting point for finding your landlord-tenant laws at: http://www.nolo.com/statute/state.cfmMy advice for people just getting started: Get a huge insurance policy and leave it at that.

Make sure your lease includes the security deposit language from Florida statute, verbatim.

I challenge anyone to find reference to the very concept of "pre-escrow" anywhere in any statute or regulation.

Although statutes do not change with regularity, it is most assuredly the case that case law can, and often does, change every other month.

Not sure your local laws on rent late fees, but where I live has no statute for late fees.