The only way out for the seller is a contingency or mutual agreement for cancellation. Otherwise the seller has to sell. If the agent lies that is another different story. That would be a good question for your attorney
Where is the ad you are seeing for this? There are currently two listings on Enfield, but neither are a foreclosure. It's possible you're seeing a "teaser" for a property that is in default but not yet on the market. Feel free to contact me direct and I can help you sort through some of these listings and find out what is available and what is not.
Keller Williams Realty