The petition for appointment of a standby guardian of the person or the estate, or both, of a person with a disability must state, if known: (a) the name, date of birth, and residence of the person with a disability; (b) the names and post office addresses of the nearest relatives of the person with a disability in the following order: (1) the spouse and adult children, parents and adult brothers and sisters, if any; if none, (2) nearest adult kindred known to the petitioner; (c) the name and post office address of the person having guardianship of the person with a disability, and of any person or persons acting as agents of the person with a disability under the Illinois Power of Attorney Act; (d) the name, post office address, and, in case of any individual, the age and occupation of the proposed standby guardian; (e) the preference of the person with a disability as to the choice of standby guardian; (f) the facts concerning the consent of the guardian of the person with a disability to the appointment of the standby guardian, or the willingness and ability of the guardian of the person with a disability to make and carry out day-to-day care decisions concerning the person with a disability; (g) the facts concerning the execution or admission to probate of the written designation of the standby guardian, if any, a copy of which shall be attached to or filed with the petition; (h) the facts concerning any guardianship court actions pending concerning the person with a disability; and (i) the facts concerning the willingness of the proposed standby guardian to serve, and in the case of the Office of State Guardian and any public guardian, evidence of a written acceptance to serve signed by the State Guardian or public guardian or an authorized representative of the State Guardian or public guardian, consistent with subsection (b) of Section 11a-3.1.