New Jersey Statutes Title 46. Property 46 § 18-11.6

a. A person which is entitled to receive payment of a mortgage duly recorded or registered in this State pursuant to a written agreement, whether or not recorded, entered into with the holder or owner of the mortgage may execute a discharge, satisfaction-piece, release, subordination or postponement on behalf of the holder or owner thereof, which instrument shall be accepted for recording by the county clerk or register of deeds and mortgages, so long as:

b. A person which is the owner or holder of a mortgage duly recorded or registered in this State for which a prior assignment thereof is unrecorded, may execute a discharge, satisfaction-piece, release, subordination or postponement thereof, which instrument shall be accepted for recording by the county clerk or register of deeds and mortgages, so long as:

c. Upon payment of the appropriate fees therefor, the county clerk or register of deeds and mortgages shall cause a marginal notation to be made upon the record of a mortgage which is specifically described in an instrument submitted in accordance with subsection a. or b. of this section.