I'm a painting contractor. Refinished kitchen and bathroom cabinets for customer. We have a signed contract. They paid $600 materials Deposit, but Never paid the $5700 balance owed for the work. They refused to pay me, then they filed a "poor workmanship" claim with my insurance. My Insurance actually paid them about $11,000 to have the cabinets redone. Bottom line: they Never paid for any of the work. Questions: I filed a mechanics lien. Should I sue to enforce the lien? ALSO: I want to know if this is INSURANCE FRAUD or not?