NJSA 3B:12-13 Power to designate testamentary guardian

3B:12-13 Power to designate testamentary guardian. 3B:12-13. Power to designate testamentary guardian. Subject to the provisions of N.J.S.3B:12-14, either parent may, by his will, appoint a guardian of the person and a guardian of the estate, or a guardian of the person and estate, of any of the parents children, including children en ventre sa mere, who are under the age of 18 years and unmarried at the death of the parent.