(a) A lawyer shall not use a firm name, letterhead or other professional designation that violates Rule 7.1. A trade name may be used by a lawyer in private practice if it does not imply a connection with a government agency or with a public or charitable legal services organization and is not otherwise in violation of Rule 7.1.
(b) A law firm with offices in more than one jurisdiction may use the same name or other professional designation in each jurisdiction.
(c) Identification of the lawyers in an office of a law firm shall indicate the jurisdictional limitations on those not licensed to practice in the jurisdiction where the office is located.
(d) The name of a lawyer holding a public office shall not be used in the name of a law firm, or in communications on i