N.J. Stat. § 44:1-80
A director of welfare acting in contiguous or adjoining municipalities, as provided in section 44:1-79 of this Title, may be removed from his responsibilities and duties in the municipality other than that of his appointment, for cause or by reason of his inability to properly perform his authorized and required functions due to the size or population of the territory in an action by the governing body of either municipality against the other municipality, in the Superior Court. The court may proceed therein in a summary manner.
The court by its judgment may terminate the contract and relieve the director of such duties and responsibilities and the additional salary theretofore agreed to be paid to him. Upon the removal of the director, the municipality may appoint one to act therein for the full term as provided in this chapter.
N.J.S. § 44:1-80