I've been through this prove it stuff before, you can begin by reading collection requirements of secured indebtedness in state stautes and then go to federal statutes, Fair Collection Practices, & the UCC.The idea is that over time a creditor abandons the claim if they fail to make an active effort to collect a debt.

Each state has a Statute of Limitations where your local municipality can take legal action against you for the un-permitted work and have you correct it according to your state's building code.

Judges frown on landlords who don't know the laws and violate statutes.

@Joan SotoHere is a link to 475http://www.leg.state.fl.us/statutes/index.cfm?

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.

They know the ins and outs of the statutes and the court system and will be able to give you a solid answer.Carefully document everything.

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.

You don't identify what state you are in so make sure your seller financing terms don't conflict with your state statutes.

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.