There shall be no intervenors as a matter of right in Rental Accommodations Division proceedings, but intervenors may be permitted to participate in the proceeding prior to a hearing if the proceedings will directly affect their rights or duties and is otherwise appropriate.
A request to intervene shall be by motion stating the reasons why intervention should be permitted.
While a proceeding is pending before the Rent Administrator, intervenors shall be considered full parties and shall have the same rights and duties as a party to a petition, with the following exceptions.
D.C. Mun. Regs. tit. 14, r. 14-3907