if they fail you end the loss there.

The house of cards falls very quickly, if all else fails, you can profit from the huge decline in the bubble we're in (tech sector, etc).Partner with Home Owners for high end flips - Has anyone ever heard of RajuSells.com?

They without fail prove that the places where people want to live are the most expensive.

After attempts to convince her to honor our agreement failed, I told her that I'd at least like to be made whole once the sale is complete. 

The police officer basically informed me because the friend has been there over a week he can't do anything and that I have to give a notice of eviction for the friend with a reasonable amount of time to vacate and if that failed(it did) to file an eviction notice with the local justice of the peace which I have done.

Some of the greatest achievers I have read about in books and watched documentaries on failed and fell flat on their face many times.

The leverage you use is that if they fail to execute this agreement then you can sue them in small claims court for lost rent and utility costs while you are attempting to re-rent the property (You have to make an honest attempt at re-renting-it would be a grey area to offer it for rent and for sale at the same time).

If all else fails it will rent for $650 a month. 

Based upon their business model this could be exactly the scenario they are looking for..i.e. borrower fails to perform on a deal with a solid spread, they take over complete it, sell it, or add to their own portfolio.

Most of the previous people failed my credit check.