If it's not a gift, more documentation and explanation will be needed (are they also owners, is there a loan, etc). 

This was probably a year ago, but Before going onto their website I even called and spoke to a worker at that office who directed me to the category where I would find them… the category was filled of all kinds of irrelevant documents, thousands of them.

Here, once you have an account and a bit of lending experience, you can access the online, fill-in-the-blank templates to create your own set of documents. 

Additionally, your loan purchaser would supply the necessary documentation.

However, DSCR Loans are also strictly for business purpose only, so don't work for house hacking (can't live in any of the units) and if refinancing into DSCR, would have to have moved out and well documented a new residence if you go that route

This is often achieved with written documentation, such as a formal ROW request from TxDOT or other correspondence indicating that condemnation proceedings were possible if no settlement was reached.

What documentation will you require at closing?

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?

For newer developers, credibility often hinges on clear and compelling financial documentation.

I had to present my documents for setting up the LLC and also my EIN number.