N.J. Stat. § 2A:61-17
When a conveyance of any real estate sold by a sheriff, or other officer or other person mentioned in section 2A:61-1 of this title, pursuant to a judgment, execution or order of any court, shall hereafter be duly made and acknowledged, or approved as provided for in this chapter, or shall have been heretofore duly made and acknowledged more than 7 years before the same shall be offered in evidence, no evidence shall be received or be of any force or avail against any bona fide purchaser holding under such conveyance, or his heirs or assigns, that the execution had not been duly recorded before it was delivered to the sheriff, or that the sale of such real estate had not been duly advertised, or that the money recovered or ordered to be made by the judgment, or execution, had been paid before the sale, unless the payment or satisfaction of such judgment, or execution shall have been entered of record before such sale.
N.J.S. § 2A:61-17