N.J. Stat. § 2A:44-19.4
Upon the completion of a sale pursuant to the provisions of this act, the proceeds thereof shall be used to pay the reasonable or agreed to charges for work, services, storage, materials or supplies, together with the expenses thereof, including the cost of notifying the customer of the sale, and the balance remaining, if any, shall be forwarded to the customer at the last known address together with a statement of the distribution of the proceeds of the sale.
If the address of the customer is unknown, the balance remaining shall be held by the person performing or furnishing the work, services, storage, materials or supplies for a period of 6 months from the date of the disposition to be paid to the customer upon demand during this period of time. Upon the expiration of the aforesaid period of six months, amounts unclaimed shall be paid to the treasurer of the municipality in which the premises are located, for the use of the municipality.
N.J.S. § 2A:44-19.4