What made you interested in investing in this type of deal?

Its more of a screening tool so that you don't have to deeply analyze deals that likely won't cash-flow. 2.

How did you finance this deal?

I like the ability to easily invest in new construction deals throughout the country where teams are already set up in place and they are able to coach me through the strategy of how to accomplish my goals. 

What made you interested in investing in this type of deal?

@Jack Hamm, how do you know the wholesaler isn't overpricing the deal too?

Like maybe cut a deal with the city for affordable housing if they own any lots and want to get rid of them.   

Attorney- It's not necessarily needed for closing but I recommend it for your first deal. 

My $10k example was admittedly unrealistic.However, by way of further background, @Dustin Heiner wrote an excellent article on this topic on his website masterpassiveincome.com titled "What to Do When A Buyer Backs Out From An Assignment Of Contract".In it he suggests a scenario where the assignee decides not to proceed, perhaps after discovering a big ticket repair item that would cost significantly more than the portion of the assignment fee held in escrow. 

I would just add that you need to use some software (excel, wave) to keep track of your income and expenses.