New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 51-3

Where, after the recording of any mortgage on real estate in any county in this state, the real estate so mortgaged shall, by an act of the legislature, be set off to another county or be transferred to the territorial limits thereof, and an action or other proceeding for the cancellation of such mortgage is or has been instituted in the county in which the mortgaged real estate is situate at the time of the institution of the proceeding, and a judgment or order in such proceeding is or has been made for the cancellation of the mortgage, the county clerk or register of deeds and mortgages, as the case may be, of the county in which the mortgage so canceled is of record, shall, upon the production and filing of a copy of such judgment or order for cancellation, certified to be a true copy by the county clerk or register of deeds and mortgages of the county in which the mortgaged real estate is situate at the time of the entry of the judgment or order, cancel and discharge the record of the mortgage and enter on the margin of the record or registry thereof, and opposite thereto, the words “canceled by judgment”, entering the date of such judgment or order and of the filing of the certified copy thereof.