N.J. Stat. § 54:4-130
Whenever the delinquent taxes against any such real property and the delinquent taxes for which the property has been sold, together with all penalties, interest and costs and expenses as aforesaid, have been fully paid and satisfied out of the rents and income collected by the receiver from such real property, the collector shall apply to the court for his discharge as such receiver. The owner or any person interested in such real property, upon presentation to the collector of a certified copy of the order or judgment of discharge, may receive, as the case may be, receipted tax bills for the payment of such taxes or a certificate of redemption from such tax sale. For good cause shown, the receiver may be discharged by the court at any time.
N.J.S. § 54:4-130