N.J. Stat. Ann. § 3B:23-37

When a devise, payable on a contingency which has not happened, is or may become a charge, at law or in equity, on real estate devised by will, any person in possession of a part of the real estate may bring a summary action in the Superior Court to set apart, as in an action for partition, a portion of the real estate as may be sufficient for payment of the devise when payable.