Hi, A contractor installed a concrete pool deck and his job was unacceptable. I refused to pay and found out the contractor is not following manufacturer's recommendation for coping installation; I requested the contractor to follow it to avoid leaving a mess again and he refused. I got a letter from a lawyer requesting full payment in 10 days and access for him to finish the job. I replied back with a letter saying, that I was happy to let him complete the job but he will have to use the correct coping materials and manufacturer's installation guidelines. We never signed an official contract other than a text message agreement. We did not get a preliminary notice either. Can the contractor filed the Lien and can we easily dispute it since the preliminary notice was not provided? Thanks