Wholesaling contract

[Marivel Valdez-Benitez]

Hello I am new to BiggerPockets and hope to become a frequent and active user in order to develop more knowledge in RE. After doing some research, I became interested in wholesaling RE, since I know this may be the best route for me right now. However, I have a few concerns I hope some of you experts can assist me with. From my knowledge you go out and find good deals for investors. In order for you to establish some income you try and earn the difference between the deal you and the seller/owner made vs what you will be offering to the investor. My question is, how is it that the investor doesn't just skip you (the middle man) and work with the seller theirselves? When you and the seller seal the deal, are you obligated to purchase the home since there is a contract involved? What does this contract contain? I really do appreciate any type of feedback!!! Marivel Valdez