Massachusetts Rules of Professional Conduct Rule 8.4: Misconduct
It is professional misconduct for a lawyer to:
(a) violate or attempt to violate the Rules of Professional Conduct, knowingly assist or induce another to do so, or do so through the acts of another;
(b) commit a criminal act that reflects adversely on the lawyer's honesty, trustworthiness, or fitness as a lawyer in other respects;
(c) engage in conduct involving dishonesty, fraud, deceit, or misrepresentation;
(e) state or imply an ability to influence improperly a government agency or official;
(f) knowingly assist a judge or judicial officer in conduct that is a violation of applicable rules of judicial conduct or other law;
(g) fail without good cause to cooperate with the Bar Counsel or the Board of Bar Overseers as provided in Supreme Judicial Court Rule 4:01, § 3; or
(h) engage in any other conduct that adversely reflects on his or her fitness to practice law.
Adopted June 9, 1997, effective January 1, 1998. Amended effective March 5, 1998.
 Many kinds of illegal conduct reflect adversely on fitness to practice law, such as offenses involving fraud and the offense of willful failure to file an income tax return. However, some kinds of offense carry no such implication. Traditionally, the distinction was drawn in terms of offenses involving "moral turpitude." That concept can be construed to include offenses concerning some matters of personal morality, such as adultery and comparable offenses, that have no specific connection to fitness for the practice of law. Although a lawyer is personally answerable to the entire criminal law, a lawyer should be professionally answerable only for offenses that indicate lack of those characteristics relevant to law practice. Offenses involving violence, dishonesty, breach of trust, or serious interference with the administration of justice are in that category. A pattern of repeated offenses, even ones of minor significance when considered separately, can indicate indifference to legal obligation.
 A lawyer may refuse to comply with an obligation imposed by law upon a good faith belief that no valid obligation exists. The provisions of Rule 1.2(d) concerning a good faith challenge to the validity, scope, meaning or application of the law apply to challenges of legal regulation of the practice of law.
 Lawyers holding public office assume legal responsibilities going beyond those of other citizens. A lawyer's abuse of public office can suggest an inability to fulfill the professional role of lawyer. The same is true of abuse of positions of private trust such as trustee, executor, administrator, guardian, agent and officer, director or manager of a corporation or other organization.
 Paragraph (e) prohibits the acceptance of referrals from a referral source, such as court or agency personnel, if the lawyer states or implies, or the client could reasonably infer, that the lawyer has an ability to influence the court or agency improperly.
 Paragraph (h) carries forward the provision of Former DR 1-102(A)(6) prohibiting conduct that adversely reflects on that lawyer's fitness to practice law, even if the conduct does not constitute a criminal, dishonest, fraudulent or other act specifically described in the other paragraphs of this rule.
Corresponding ABA Model Rule. Clauses (a), (b), (c), (d), (e), and (f) identical to Model Rule 8.4; clause (g) incorporates obligations set forth in S.J.C. Rule 4:01, § 3; clause (h) comes from DR 1-102 (A)(6).
Corresponding Former Massachusetts Rule. DR 1-102, DR 9-101 (C). See S.J.C. Rule 4:01, § 3.