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I am sorry to hear about this situation. What someone in your situation may wish to do is to sue them for breach of contract. “Under New York law, an action for breach of contract requires proof of (1) a contract; (2) performance of the contract by one party; (3) breach by the other party; and (4) damages.”Rexnord Holdings, Inc. v. Bidermann, 21 F.3d 522, 525 (2d Cir. 1994) (applying New York law).
The Court's location depends on where they are located and where you are in NY.
Often, a letter threatening suit is enough to scare the party into doing what they have to. Let me know if you need an example of such a letter.
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