How does one really know the best deal based upon a short description?

Unfortunately, in person my agent and I were able to see it needed a lot (and I emphasize a lot) more work than was shown in pictures or explained in the description online.

Based on the description there should be some costs factored in.Although it meets the 50% rule for Cash Flow your actual expense amounts do not look right.

But it doesn't appear from your description that this would be a prohibited transaction.

He would have every right to withdraw his deposit on the grounds that your "description" of what it would look like doesn't match the actual outcome.

It is (charmingly) known as 'unrecaptured section 1250 gain', and it gets taxed at 25%.Your description of the seller financing 90% of the deal sounds like an installment sale.

Anything that is a "human" right, the costs, and benefits, should be shared by all in that society (on a broad basis, Earth, but on a geographical basis, each individual nation).

I should have provided a better description!

You could ask the contractor to email you a document or product description, also at a very specific time. 

You can certainly use the cap rate formula backwards and make it calculate return but it's still a poor measure of return.Consider Wikipedia's definition and description of cap rate - https://en.wikipedia.org/wiki/Capitalization_rate"Capitalization rate (or “Cap Rate”) is a real estate valuation measure used to compare different real estate investments.