You however have the luxury to take a couple big swings and be able to recover and repeat what worked much quicker. 

I mean how else would Sellers (or even perhaps buyers) know that you own a neighborhood? 

I dont think the seller realized I was the lender either..

If you have a cooperative Seller, walk through each unit and inspect together.

There’s nothing special about the seller financing terms here IMO, unless you can’t get a conventional loan of course but if that’s the case the balloon payments create a high risk for you and you shouldn’t do it anyway.

Its great that the seller is will to carry a note in a seller 2nd as well, that will help reduce your require monthly payment with the right lenders.

We hired an appraisal company to do an appraisal knowing we were under the gun because now the seller is threatening to sue me and keep my earnest money.

I love the idea and I would like to analyze deals using a variety of strategies and model each strategy out, however I am struggling when it comes to the rubber meeting the road for analyzing the deals.For example, I would like to analyze deals in a single spreadsheet for various strategies such as seller financing, subto, traditional lender, external investor, etc. etc. 

They can sometimes be more open to funding niche investments like mobile home parks, especially when you’ve got proven cash flow and a solid plan.Another option could be talking to your uncle about seller financing.

And a bigger question: The seller did not disclose this in their disclosures.