N.J. Stat. § 3B:14-47
Every fiduciary, whether or not a resident within this State, who is granted letters testamentary or of administration, trusteeship or guardianship within this State shall, at the time of the grant, or before he undertakes to perform his duties, file a power of attorney with the surrogate of the county or clerk of the court granting the letters. The power of attorney shall be duly executed in writing, shall set forth the post office address, street and number, of the fiduciary and, by sufficient language, constitute the surrogate or clerk with whom it is filed, and his successors in office, his true and lawful attorney to receive process affecting the estate in charge of the fiduciary, or any interest therein, with the same force and effect as if the process were duly served on the fiduciary within this State.
N.J.S. § 3B:14-47