Make sure you have a fax machine, cause you'll need to send your documents that way.Rental registration is $70 each, plus convenience fee.

Understanding the Types of Documents/StatusesWhen reviewing the results, you will encounter several types of documents.

I have had this goal of buying my first duplex and have talked to real estate investors, realtors, lenders, appraisers and have been encouraged so much to where I am anxious to dive into this.Now that I am 18 I have absolutely no debt, a credit score of 727, I have 28k sitting in a certificate of deposit, a couple years of working consistently under my belt, I’ve also been investing in my Roth IRA, I feel very blessed to be in this situation.I am still in high school, I know it wouldn’t be smart to buy a house right now but something in me is so anxious to buy this house I know I have to have patience but I don’t know if I should start the process of getting pre approved, finding a good investor friendly realtor, lender, preparing my documents or if I should just wait.When analyzing deals in my market I have crystal clear real estate deal criteria my strategy is house hacking a duplex, price range of 500,000-600,00 in Salt lake, Utah! 

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

In which case, if he sets up the state LLC correctly, and depending on what documents are available for public viewing, he would be able to pull it off no? 

It's documented on the Airbnb messaging platform.  

I understand there is also property management software that combines ACH payment capabilities with feature with basic book keeping features, perhaps work orders/repair requests, document(lease) archives, leasing/listing features? 

https://www.biggerpockets.com/...12 Frequently Asked Questions (And Answers) About DSCR Loanshttps://www.biggerpockets.com/...8 More Commonly Asked Questions and Answers to DSCR Loanshttps://www.biggerpockets.com/blog/eight-questions-and-answe...What Documents Do You Need for a DSCR Loan?

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Quote from @Joshua Thang: Yes 2 closets, minimum height requirement met, it's bigger than the bedroom than the other rooms that was considered a room, 1 window, and 1 door.Personally, I'd have the loan officer do an onsite walkthrough of the house and document the third bedroom for underwriting.