We were the electrical contractors on PF Chang in Waco Texas. We live in Shreveport, La. The last day worked was October 30, 2018. We sent our last invoice for remainder of contract on 12/19/2018 for 18, 000.00. They also owed for another invoice that were sent out on 9/24/2018 and 10/25/2018 that totaled 21, 058.50. We have signed the release for the money, (21,058.50)but they are wanting additional release from our subs that we have already sent them. We have not signed anything on the 18, 000.00. I faxed a intent to lein just to the contractor but I dont think the property owner was correct ( I have the correct info now). They are not returning our calls since they got the fax. I am needing to know what are our lein rights? What form do I need to send. What are my options.