Depending on the homestead exemption applicable in your state, the Bankruptcy Code allows a Debtor to void and nullify certain judicial liens against a residence if the lien interferes with the homestead exemption. While it is possible to reopen a closed case to avoid a lien, do not wait too long to do so or it may be too late. Even though the debt is discharged by the bankruptcy case, the lien will survive the case unless it is avoided under the Bankruptcy Code in the case.
It is a simple process to file a motion in a bankruptcy case to lift the lien on the home even if there is no equity in the home to cover the exemption. The lien must be a judicial lien, that is, a lien created by the entry of a judgment in court. Not all liens on a home may be judicial liens.Generally, the motion to avoid the lien is filed in the case while it is open, but court decisions are full of examples of cases being reopened for the sole purpose of avoiding an old lien.
Be careful not to wait too long.