N.J. Stat. Ann. § 2A:19-37

In case any assignee shall embezzle, waste or misapply any part of the trust estate in his hands or under his control, or shall neglect or refuse to execute his trust, or to perform and obey any order or judgment of the court in respect of his trust, or shall remove from the state, or for a reasonable or just cause manifested to the court shall desire to be relieved from his office, then the court may remove the assignee and appoint a suitable person or persons in his stead.