Bar Counsel shall include in the package containing the petition served on respondent in accordance with Rule 7.2 a letter (the "service letter") which shall notify respondent of the terms of this Rule and specifically identify an address at which respondent shall be deemed to have consented to service by mail of all subsequent documents, unless respondent notifies Bar Counsel in writing, a copy of which must be filed with the Board, of a different address at which subsequent documents may be served upon him. In the absence of receipt by Bar Counsel of such written notice, subsequent documents may be served upon respondent by regular mail addressed to him at the address identified in the service letter.
     In the event counsel for respondent enters his appearance of record in the proceeding, subsequent documents may be served upon respondent by regular mail addressed to respondent’s counsel at his office address noted in his appearance. Subsequent documents may also be served on respondent in any other manner permitted by Rule 5(b) of the Superior Court Rules of Civil Procedure.
     The person serving any subsequent documents shall file with the Board Office proof of service thereof in accordance with Rule 5-I of the Superior Court Rules of Civil Procedure. The Board Office shall include such proof of service as part of the official record of proceedings.