Activities of other attorneys

(1) An attorney may not use in a firm name, letterhead or other written form the name of an attorney whose license is suspended or revoked. (2) An attorney may not authorize or knowingly permit an attorney whose license is suspended or revoked to do any of the following: (a) Interview clients or witnesses, except that in the course of employment by a commercial employer, the attorney may interview witnesses and participate in the investigation of claims. (b) Prepare cases for trial. (c) Do any legal research or other law work activity in a law office. (d) Write briefs or trial memoranda. (e) Perform any law related services for a member of the Wisconsin bar, either on a salary or a percentage or a fee-splitting basis, except that an attorney may share attorney fees on a quantum meruit basis only for services performed prior to suspension or revocation. (3) An attorney may not permit an attorney whose license is suspended or revoked or who is suspended from the practice of law to engage in any activity prohibited by SCR 22.26. (4) An attorney's failure to comply with this rule may constitute misconduct.