I am a carpentry subcontractor that has a subcontract with a General Contractor on a commercial office build out. We do not file preliminary notices, however we did file an intent to file a lien within the time frame. Is it OK to file a lien or because we we did not file a preliminary notice that it will not be valid? We are not talking a huge dollar amount. Contract was for $19,291 and the amount remaining to be paid is $6,578.50.