(1) The petition for ninety day treatment shall be filed with the clerk of the superior court at least three days before expiration of the fourteen-day period of intensive treatment. The clerk shall set a trial setting date as provided in RCW
71.05.310 on the next judicial day after the date of filing the petition and notify the designated crisis responder. The designated crisis responder shall immediately notify the person detained, his or her attorney, if any, and his or her guardian or conservator, if any, the prosecuting attorney, and the behavioral health administrative services organization administrator, and provide a copy of the petition to such persons as soon as possible. The behavioral health administrative services organization administrator or designee may review the petition and may appear and testify at the full hearing on the petition.
(2) The attorney for the detained person shall advise him or her of his or her right to be represented by an attorney, his or her right to a jury trial, and, if the petition is for commitment for mental health treatment, his or her loss of firearm rights if involuntarily committed. If the detained person is not represented by an attorney, or is indigent or is unwilling to retain an attorney, the court shall immediately appoint an attorney to represent him or her. The court shall, if requested, appoint a reasonably available licensed physician, physician assistant, psychiatric advanced registered nurse practitioner, psychologist, psychiatrist, or other professional person, designated by the detained person to examine and testify on behalf of the detained person.
(3) The court may, if requested, also appoint a professional person as defined in RCW
71.05.020 to seek less restrictive alternative courses of treatment and to testify on behalf of the detained person. In the case of a person with a developmental disability who has been determined to be incompetent pursuant to RCW
10.77.086(7), the appointed professional person under this section shall be a developmental disabilities professional.