GC Refuse to pay for the work already complete, is a 42k from which 90% of the work have been already completed and he had only pay us 27K and is refusing too pay us the remaining
As a subcontractor you may record a lien if you sent preliminary notice to the owner within 20 days of commencing your work. You may do so within 90 days of project completion by all trades, or if a notice of completion is recorded, within 30 days of that notice. If you did not give preliminary notice, you may still be eligible to record a lien if you can demonstrate that the project owner had actual knowledge of your work from commencement of your work on the project. In this situation there is a potential argument that the owner would be estopped from invalidating a lien based on lack of preliminary notice due to the owner's actual knowledge.