(a) Upon the filing of a petition by a reputable person or by the alleged person with a disability himself or on its own motion, the court may adjudge a person to be a person with a disability, but only if it has been demonstrated by clear and convincing evidence that the person is a person with a disability as defined in Section 11a-2. If the court adjudges a person to be a person with a disability, the court may appoint (1) a guardian of his person, if it has been demonstrated by clear and convincing evidence that because of his disability he lacks sufficient understanding or capacity to make or communicate responsible decisions concerning the care of his person, or (2) a guardian of his estate, if it has been demonstrated by clear and convincing evidence that because of his disability he is unable to manage his estate or financial affairs, or (3) a guardian of his person and of his estate. The court may appoint co-guardians in accordance with Section 11a-15.
     (b) Guardianship shall be utilized only as is necessary to promote the well-being of the person with a disability, to protect him from neglect, exploitation, or abuse, and to encourage development of his maximum self-reliance and independence. Guardianship shall be ordered only to the extent necessitated by the individual‘s actual mental, physical and adaptive limitations. The order shall conform with Sections 11a-12 and 11a-14.