My client in San Mateo County, CA took delivery of three floating shelves from us, and has not remitted their final payment of 25% to us, after several/many calls from both me and my wife. We would like to be paid our final 25% which is clearly stated in the Statement of Work (SOW) that we provide each and every client. Our payment terms of very clear; 75% down and 25% at delivery. The 75% down provides me the ability to buy the wood and materials for their custom project. We send them all the materials they need to place their shelves where ever they'd like in their home. I believe that my only recourse is to file a Mechanics Lien to receive final payment. I understand the need to provide Intent to file etc. Please let me know if I need to provide more information so you can answer this question - can I file a mechanics lien to get paid? Your insight is valuable.