I have a property to flip. I got it for 17,000 and am flipping it for 39,000. It's worth 110,000. I have the purchase & sales contract. How do I get the assignment fee. Should it be "before I send the person the contract . Because when I tried to flip a different property before the buyer let the contract I had (purchase & sale) run out so that person could go behind my back and pick it up for the original price I was getting it for. Do you have a "no fail" way to do it? Thankyou Mr. King!