N.J. Stat. § 17:31-4
No bond, undertaking, recognizance or other obligation heretofore or hereafter given or entered into by any company organized under the laws of this or any other State and authorized to transact in this State the business of executing bonds or entering into recognizances in civil or criminal proceedings in the courts of this State, and the business of insuring against loss or damage on account of neglect or breaches of duty or obligations guaranteed by the insurer or the business of guaranteeing bonds, undertakings or other obligations required by law or the charter, ordinances, rules or regulations of any county or municipality, or any forfeiture thereunder, shall be deemed to impose any lien upon the real estate of the company in this State.
This section shall not affect any right to a lien upon the real estate by attachment or other judicial proceeding or by judgment acquired by reason of any such bond or recognizance.
N.J.S. § 17:31-4