Are you able to market/list a property you have under contract?

[Joseph Jakubik Sr]

I have a few vacant land properties that I'm about to put under contract. I saw a podcast from a bigger name land flipper that you're able to market/list a lot if it's in your contact with seller. Also added a clause that the buyer could back out at any time. The goal is to find a buyer without using your own money. I was wondering if this is true? I was under the impression that I needed the deed in my name to list the property. Has anyone ever done this and how was the contract worded. Thank you.