I was hired by a home flipper to do a clean-out on a very large home in White Hills Arizona. Owner is from Phoenix Arizona, We have all receipts from Dump and Fuel, We sent him pictures of all loads going to dump. He agreed to 15.00 per hour for myself & 13.00 for helper. I billed him 3747.90 He complained about price and discounted 200.00 from the invoice. He owes 547.90 can I lien the property before he sells it?