I am a material supplier who was in a joint check agreement with the GC and a subcontractor. The GC and sub are in conflict now and when I approached the GC about our final payment of $243K. I was told the JCA was not a contract between us. All checks have been jointly issued and the JCA shows the total amount we are due. The Preliminary Notice was not completed on time and I was told that the Lien could be challenged because of the lack of a Preliminary. Is there anything that can be done at this point?