(1) A litigation guardian is to conduct a proceeding on behalf of a person under disability.(2) A litigation guardian is required or authorised to do anything that a person under disability is required or authorised to do in relation to the conduct of a proceeding.(3) A litigation guardian is a party to a proceeding.(4) Unless the Court orders otherwise, a litigation guardian appointed on behalf of a claimant or applicant is liable for the costs of any successful party.(5) Unless the Court orders otherwise, a litigation guardian appointed on behalf of a defendant is not liable for the costs of any other party.(6) Failure to appoint a litigation guardian does not invalidate a proceeding.