Under MRPC Rule 1.6, what is a lawyer's duty regarding client confidentiality?

Under MRPC Rule 1.6, a lawyer's primary duty regarding client confidentiality is clear: the lawyer must not reveal information relating to the representation of a client unless the client gives informed consent. This rule is foundational to the attorney-client relationship, as it promotes trust and encourages clients to communicate openly and honestly with their lawyers without fear that their sensitive information will be disclosed.

The necessity of client consent emphasizes the importance of confidentiality in legal representation. It acknowledges that clients must have control over who their personal information is shared with, which is essential for maintaining the integrity of the legal process and ensuring that clients feel safe in their interactions with their attorneys.

In contrast, the other options imply a breach of this confidentiality principle. Disclosing all client information to the court, discussing case details with third parties without consent, or making file notes accessible to everyone would violate the client's right to privacy and trust in the lawyer-client relationship. Therefore, the requirement that a lawyer must not reveal information unless the client consents is not only a legal obligation but also a crucial ethical standard in the practice of law.