1 Advising or Assisting the Violation of Law Rule 1.3 Diligence Rule 1.4 Communication with Clients Rule 1.4. This is a long-standing legal principle known as attorney-client privilege, which means that communication between attorneys and clients is confidential.The attorney-client relationship affords a distinct, invaluable right to have communications protected from compelled disclosure to any third party. The attorney-client relationship affords a distinct, invaluable right to have communications protected from compelled disclosure to any third party. As the client, your first major responsibility is to work out the manner in which you will continue your personal relationship with your partner or spouse. When you seek the lawyer's assistance in carrying out or planning a crime or a fraud. California case law is unequivocal. I have asked for a free consultation to a potential case and fill out a brief explanation of the case online. An attorney's duty of loyalty to a client is mentioned but is not expressly defined in the California Rules of Professional Conduct (CRPC). Generally, attorney-client privilege is best described as a legal benefit that safeguards confidential communications between said parties.