N.J. Stat. § 2A:44-167
When a rentor has a lien upon the machinery or other chattels of any rentee for unpaid rent, and the amount due shall remain due and unpaid, either in whole or in part, he may expose or cause to be exposed such machinery or other chattels for sale, and sell the same free and clear of such liens and encumbrances, to which the lien of the rentor is given priority by section 2A:44-166 of this title, at public auction, upon notice of sale being published 2 times for 2 consecutive weeks, once in each week, preceding the day of sale, in a newspaper published in the county in which such machinery or other chattels are located and notice of sale being posted in 5 or more public places in such county, one of which shall be in the municipality in which such machinery or other chattels are located, within 15 days but not less than 5 days, before the sale. A copy of the notice shall be mailed to the owner, if known, at least 5 days before the day of sale, at his last known post-office address.
N.J.S. § 2A:44-167