How do you quiet a title when an invalid mechanics between has been filed against you and time has expired?

After 10 months, we parted ways with our contractor because of deceit and fraud. The contractor never gave us a Residential Disclosure Notice. We will be litigating. The contractor then gave our phone number to one of its own subcontractors to get payment from us. We have paid our contracted rate for framing in full, and that is what we told the subcontractor. He told us he knows that his beef is not with us but with the general contractor. That subcontractor has now filed a mechanic’s lien, which is invalid for several reasons. The contractor also filed an invalid lien, and the 90 days to complete an amendment is passed. We have no intention of moving from our home, but we have never had a mechanic’s lien against any property we’ve ever owned. Nor do we owe any money to anyone. So how do we quiet the title against these two invalid mechanic’s liens? Thank you for your help. Dawn Richerson