What is a potential consequence for violating "Must" rules according to the ABA Model Rules?

Violating "Must" rules in the ABA Model Rules of Professional Conduct can lead to disciplinary actions, and one such consequence is reproval. The "Must" rules establish mandatory conduct that lawyers are required to follow, and failure to adhere to these rules indicates unprofessional behavior or ethical violations. Reproval serves as a formal reprimand from an appropriate authority, signaling to the lawyer that their actions were not in line with the ethical standards expected in the legal profession.

Other potential consequences of violations can vary and may include suspension or disbarment, depending on the severity of the violation. While recognition of achievement, training requirements, or increased compensation might be considered incentives or outcomes related to positive behavior, they do not pertain to the consequences of failing to meet the mandatory obligations set out in the Model Rules. Thus, reproval is the appropriate acknowledgment of a breach of duty associated with "Must" rules.