(a) Subject to section (b) of this Rule, a law practice, including goodwill, may be sold if the following conditions are satisfied:
(1) Except in the case of death, disability, or appointment of the seller to judicial office, the entire practice that is the subject of the sale has been in existence at least five years prior to the date of sale;
(2) The practice is sold as an entirety to another attorney or law firm; and
(3) Written notice has been mailed to the last known address of the seller's current clients regarding:
(A) the proposed sale;
(B) the terms of any proposed change in the fee arrangement;
(C) the client's right to retain another attorney, to take possession of the file, and to obtain any funds or other property to which the client is entitled; and
(D) the fact that the client's consent to the new representation will be presumed if the client does not take any action or does not otherwise object within sixty (60) days of mailing of the notice.
(b) If a notice required by subsection (a)(3) of this Rule is returned and the client cannot be located, the representation of that client may be transferred to the purchaser only by an order of a court of competent jurisdiction authorizing the transfer. The seller may disclose to the court in camera information relating to the representation only to the extent necessary to obtain an order authorizing the transfer.