On construction jobs, a documented payment demand is step one, and in New York you may also have powerful lien rights.
Identify the project, your contract or PO, the work performed, the amount unpaid, and a deadline. Attach the contract, change orders, and proof of completion.
New York lets contractors and subs file a mechanic's lien against the property for unpaid work, generally within a strict window after your last day of work. A demand noting your intent to lien and sue often unlocks payment. Confirm your deadline.
A claim against the improved property for unpaid construction work. In New York it must be filed within a strict deadline after your last day of work.
Many file with help; the deadlines and formalities are unforgiving, so attorney involvement is wise. NY matters only here.
Often, especially when it credibly references a lien and suit.