Good morning. We have not received our final payment for a project that we did in Portland OR. We were last on site around Jan 31. 2020. The GC is stating that the Owner is responsible and the Owner is stating that the GC is responsible for the last payment. We would like to get a lien filed but we are not sure if that is possible or what we should do next as it has been over 75 days since we were last on site. Can you help?