R. 4:50-1. — Grounds of Motion

On motion, with briefs, and upon such terms as are just, the court may relieve a party or the party's legal representative from a final judgment or order for the following reasons: (a) mistake, inadvertence, surprise, or excusable neglect; (b) newly discovered evidence which would probably alter the judgment or order and which by due diligence could not have been discovered in time to move for a new trial under R. 4:49;

(c) fraud (whether heretofore denominated intrinsic or extrinsic), misrepresentation, or other misconduct of an adverse party; (d) the judgment or order is void; (e) the judgment or order has been satisfied, released or discharged, or a prior judgment or order upon which it is based has been reversed or otherwise vacated, or it is no longer equitable that the judgment or order should have prospective application; or (f) any other reason justifying relief from the operation of the judgment or order.