California Rule of Professional Conduct 3.110 – Duty of Competence
Rule 3.110 sets the foundational expectation that California attorneys perform legal services with competence. Under this rule, competence includes the application of learning, skill, thoroughness, and preparation reasonably necessary for the representation. The rule applies to all aspects of legal work; from advising clients to courtroom advocacy and document preparation.
While the term "competence" can vary by context, the rule emphasizes the importance of maintaining professional standards throughout the attorney-client relationship. It also reinforces the need to continually update legal knowledge and skills as the law evolves.