The provisions of this title shall govern the rights, duties and powers of successors and fiduciaries relating to the administration of all estates except that the validity and propriety of all acts done by a fiduciary and all rights established in successors prior to September 1, 1978, shall be determined under the law as then in effect.

L.1981, c. 405, s. 3B:1-6, eff. May 1, 1982.