Subcontractor for a GC who come to find has no license and isn't registered (no address) to perform HVACR work on a job in Rumson, NJ. My company is fully licensed and insured. I am not being paid for the job completed 12/4/18. I was paid $10k, but am owed $7,800. Mechanics Lien is directed at the homeowner, regardless of GC. Should I send any forms as a forewarning before filing the mechanics lien?