I purchased a home to renovate in Arizona. I live in my current house. I had a verbal contract with a licensed contractor to remove an unground pool and trees in, etc in the backyard and do grading. After agreeing to take out a large pine tree at the last minute he refused, he has likened the house but will not show us receipts to back up his charges to us (pass on to us)of fill dirt and delivery of dirt to the home. Can he lien a residence? Must he show us receipts for what he is charging us. Essentially doubling our costs of the job.