you file a response to the petition for guardianship stating why the proposed guardian may or may not be qualified and a counter petition within the response stating who you propose as the guardian. A guardian ad litem has been appointed to investigate. As his sister, the "gal" may interview you. If not your mother and step father as brother's guarrdian, who should be? If your brother has been living with them all along, it could be extremely challenging to contest their petition. Placement...