I'm a subcontractor working on a commercial project. The owner and general contractor(same person) on the job is one I have done several jobs for in the past. We had a verbal agreement, and I DID file a 20 day prelim at the appropriate time. Now, the job is completed, and he is trying to tell me the "lender" is refusing to pay and wants to renegotiate the original agreed upon price. (Also refusing several change orders which were upgrades of materials, etc. that were approved as well)I realize my stupidity in allowing this to escalate without getting in writing- lesson well learned...however, any recourse? This is over $30K we are talking about.