(i) To issue default orders for good cause against parties who fail to participate in the proceeding, or to comply with these rules;
(j) If appropriate, to issue orders for summary disposition in the manner prescribed by § 12.310;
(k) If an oral hearing is ordered, to preside at the oral hearing, which shall include the authority to receive relevant evidence, to administer oaths and affirmations, to examine witnesses, and to rule on offers of proof;
(l) To make the initial decision; and
(m) To issue such orders, and take any other actions as are required to give effect to these rules.