A parent of an unmarried incapacitated or partially incapacitated person, the spouse of a married incapacitated or partially incapacitated person, or an adult child of such person who is serving as guardian or limited guardian may nominate by will, or by other writing executed by the nominating parent or parents, spouse, or adult child, an individual to serve as guardian or limited guardian upon the death or incapacity of the nominator. Such nomination shall be executed by the nominator in the same manner as provided this Act. ONCA 13-34, eff. Apr. 19, 2013.