Has Any wholesaler sold to the end buyer?

[Marcel Pean]

A realtor that I recently networked with mentioned he has a client that wants to buy a house in the market I live in but the client is currently out of state and is waiting for a moving expense package from his job to purchase the property. The client will eventually move to my area but doesn't want to lose the house. Therefore, the realtor suggested I sign a contract that has a few contingencies such as, I can walk away from the deal if the house doesn't meet inspection etc., and sell the house to the endbuyer for a bit more than I bought it. The wholesale fee is essentially for holding onto the property for an undefined amount of time.  Has any wholesaler ever done this? Have any realtors partnered with a wholesaler to do this? Apparently it is legal and the contract would be written in a way to reduce risk and still earn about as much as the traditional way of wholesaling.  Thanks in advance for the feed back!