In re Guardianship of A.G.G., a Minor 

Non-parent filed petition under Probate Act seeking guardianship of a minor, stated that he had been caring for minor for the previous three years, alleged that minor's mother has been unable and unwilling to care for her and had relinquished that responsibility to him, and alleged that minor's biological father was unable and unwilling to care for her. Court erred in ruling on the standing issue without conducting an evidentiary hearing on the issue. Whether the mother was a willing and able parent was not tried, but the court proceeded to what was ostensibly a dispositional hearing on best interests. GAL should not be precluded from commenting on whether the mother was a willing-and-able parent, as the court had plenary jurisdiction over the person of the minor. (WELCH and STEWART, concurring.)