Our general contractor filed liens against all 5 of our properties for the same amount, over $31000 each. We have paid shim everything but maybe $10,000 (he has not submitted all mileage logs or reimbursement receipts). We do not know how he came up with the amounts but we are in the process of selling the houses and his lien is posing problems. What can we do to get these overturned? He did work on all houses but they all have items still that need to be fixed.