R. 2:3-3. — Joint and Several Appeals

a. Parties interested jointly, severally, or otherwise in a judgment, order, decision or action may join in an appeal therefrom or may appeal separately.

b. When aware of any other pending appeal or an appeal already decided arising out of the same judgment, order, decision, or action, parties are obligated to immediately notify the clerk of the court of the existence of the other appeal even if the other appeal is filed after the party's appeal. This obligation requires the party to advise of other appeals pending or decided even if pending in or decided by a court of some other jurisdiction.