The respondent must file a written answer to the complaint within 20 days from the completed service of notice. For good cause shown upon written application, the grievance commission may grant an extension of time for filing an answer. If the respondent fails or refuses to file an answer within the time specified, the allegations of the complaint are deemed admitted, and the matter will proceed to a hearing on the issue of the appropriate sanction.
Griev. Comm. R. P. 36.7