N.J. Ct. R. 4:94-1

A general guardian of the person or property of a minor or mentally incapacitated person or, if the general guardian shall fail to act or has an adverse interest or other good cause exists, a guardian ad litem appointed by the court after notice to the general guardian, or any person having a vested interest in lands in which a minor, mentally incapacitated person, or person not in being has an interest, may bring an action in the Superior Court for the sale or other disposition of the property of the minor, mentally incapacitated person or person not in being. Nothing in these rules shall be deemed to authorize the sale or other disposition of any property contrary to the provisions of any will or conveyance by which the same were bequeathed, devised or granted to or for the benefit of the minor or mentally incapacitated person.