It doesn't quite remind me of 2004-2008 since the borrowers need to have a history of paying their bills on time and provide evidence of the capacity to repay the debt, for investment properties lenders are requiring anywhere rom 10-25% down depending on the loan amount and documentation. 

You should 100% be able to get all the documents you need from HERO.

What kind of documents would I need to cover both of our ends in any worst case scenario and where could I find some examples?

- Properly document your rental income on a schedule E and report it to the IRS.Connect with an Investment Friendly Lender- Not all lenders are equal.

The majority of data is open source and we can get it by simply looking at Zillow, county websites or heaven forbid taking a trip down to the county clerk’s office and actually pulling the documents.

Tell the truth, because if they are trying to purchase a home and a verification of rent is from a private party we'll ask for supporting documentation from the borrower anyways, as we know landlords may stretch the truth. 

They will need to see all of the documents you've signed regarding the loan.

Communication with the Current Property Management Company•First, establish open communication with the outgoing PMC to coordinate the transfer of information and documents.

Document your experience so you can share a case study here or at your local REIA

@Sam FaasAn owner financing agreement between buyer and seller should always be memorialized in a written document that includes the specifics of the deal.