Assignment/double closing profit disclosure

[Jose Falconett]

In what contract situation will the private seller and investor-end buyer know what a wholesalers profit will be during the closing period of a deal?

I ask because I would not want to piss of a financially distressed seller or an end buyer when they find out during closing that I am making any significant amount of money by wholesale brokering a deal...even though it is a crucial role in the deal. 

Certainly a double closing will not disclose profit, just create 2 closing costs, but will an assignment of contract show the old seller and new buyer on any documents: like a final statement. I need to know how to roll the dice and make the transaction smooth as a baby bottom. thanks