(a) When a guardianship petition is filed, the petition shall be served upon the parent or parents, person or persons or organization holding parental rights at the respondent's last known address.
(b) If the Court finds that personal service within the State cannot be accomplished upon the parent or parents, person or persons, or organization holding parental rights, the petitioner shall cause notice to be published either on a legal notices website established by the Court or in a newspaper of general circulation in the county where the respondent is most likely to be residing.
(c) Personal service at any time prior to the hearing shall be sufficient to give jurisdiction.
(d) Notice provided pursuant to this section shall constitute conclusive evidence of service and a hearing will then proceed at the time and date set, with or without the appearance of the parent or parents, person or persons, or organization so notified.