I'm a subcontractor working on a large commercial project. We delivered materials to our customer on or around 9/20/20. Our customer was kicked off the job by their customer and has refused to pay us until they resolve their lawsuit they are involved with their customer. We did not become aware of this until late November. We sent them a notice of intent to lien that was delivered on 12/21/20. Are we still able to file a lien?