Ask a Lawyer and Get Answers to Your Legal Questions
I am sorry to learn of this situation.
While it is relatively easy to sue for breach of contract in small claims court, you would need to do this in New York (where the Defendant lives), which makes the enforcement a little more time consuming and expensive.
You can still do it, but it may not be as cost effective.
For information on filing suit, etc. see: https://www.nycourts.gov/courts/nyc/smallclaims/startingcase.shtml