However, he needs cash and he is willing to take 19k down and seller finance the balance.He also has two additional (and basically identical) properties on the same street that he is willing to offer-up as well under similar terms.Based on this info, is there a deal here?

The home that I live in i have a mortgage balance of $155k at 4.5% on a 30 yr. fixed No 2nd mtg or other debt attached to property.I purchased at $216k comps in the area (zestimates) are running between $220k and $240k for identical structures.

So, if you buy an identical condo with 50% down, you would now cash flow $400/mo. 

The main funding option which most of our clients love funds up to $200K, No income verification needed, No collateral, and O% interest for 12 to 24 months.

The house right next door was listed at $160k within the last month, and is almost identical from the outside as the one I'm looking at (though I'm sure that price will drop as well, as the $75k one has been listed almost 8 months now).

We do extremely thorough vetting so that includes criminal background, employment/income verification, rental history and credit.  

Consequently, as part of our application, we have applicants sign both landlord and employer reference consents which we can present to current / past landlords or employers authorizing them to discuss the applicants tenancy or employment with them.Our consent forms also identity the information we will seek, so the applicant is fully informed.

What documents or verification do I ask for from buyer to make the transaction go smoothly and professional as the seller?

Two identical houses that are about 12 feet from each other and basically on the same lot.One is vacant, and has even been broken into and had wiring and pipes stolen.

From a professional perspective, I love the extra fees I can charge for doing LLC tax returns but I only recommend clients use them for one or more of the following reasons:1) multi member ownership 2) substantial personal net worth liability protection 3) valuation discounts for transferring ownership in an estate planning context 4) privacy / identity protection"None of these apply to me except #4 but certainly NOT worth $800/yr not to mention other states fees, tax filing etc.Thanks Ali.