Unless you have already paid all funds into escrow (and even then it is hard) you generally cannot be compelled to close escrow.
Hope that cools you off a touch.
However, there is generally a clause about your deposit being kept as liquidated damages and that going away. Usually, that is harder to get back from a new builder than on a standard purchase agreement.
If you have not paid funds in at all yet, then don’t.
If you used a personal check, stop payment now.
If you did not walk away with a copy of what you signed and now it is more than 12 hrs later, the contract may be voidable (though I am not a lawyer, that is how it has been related to me by lawyers).
