(1) Except where otherwise provided by or under any Act, a person under disability shall commence or defend a proceeding by the person's litigation guardian.
(2) Except where otherwise provided by these Rules, anything in a proceeding that is required or permitted by the Rules to be done by a party shall or may, if the party is a person under disability, be done by the person's litigation guardian.
(3) A litigation guardian of a person under disability shall act by a solicitor.
(4) Unless for special reason the Court otherwise orders, the litigation guardian of a person under disability is not personally liable for costs awarded against the person.