Property under contract and seller sells to another wholesaler

[Nnadozie Nwogbe]

Got a property under contract at 6pm on the day before, posted it online and on Facebook groups and by 1:30pm the following day someone knocks on sellers door and she sells it off to the next person. I am not naïve to the risk of this, I would just like to know if people have clauses in their contract with the seller to stop them from selling it off within the 30 day period while you find a seller. Unfortunately I had already lined up a seller and would have been able to close today.

Also do you advice putting down earnest money?

Secondly, advertising works in two folds as it exposes you to someone else swooping in and stealing the deal but also increases your likelihood of closure, so I don't believe there is much in the way of what can be done to protect yourself, but would appreciate any advice if you have a way of managing this risk.

thanks in advance.