The perfect purchase and sales agreement contract to get to your sellers while your whole selling real estate. When buying a property from a wholesaler, at what point should you ask for the original contract between the wholesaler and the seller.You may need to get a real estate license or some other kind of license in order to assign real estate contracts (wholesale real estate). How To Fill Out An Assignment Contract For Wholesaling Real Estate! Download a free wholesale real estate contract and assignment contract that you can use in your real estate wholesaling business. In the state of Texas, you can wholesale properties using the TREC 1-4 Contract. Here is a video sharing what I have done before. Discover everything you need to know about how to make a wholesale contract, including what to include and how PandaDoc can help. There are a few ways to sell the property to a new buyer. The easiest way is to complete a simple Assignment Contract.