About

Marjorie Roesser O’Neill is a seasoned banking attorney at Cooley LLP in San Francisco, where she brings more than 60 years of experience to her work advising clients on complex banking matters. Based in Cooley’s office at 3 Embarcadero Center, she is known for providing thoughtful, practical counsel to financial institutions and other clients navigating the evolving regulatory and transactional landscape of the banking industry. Her extensive background gives her a deep understanding of the legal, business, and operational issues that affect banks and financial services providers. Throughout her career, Ms. O’Neill has developed a reputation for delivering clear, strategic guidance tailored to each client’s needs. She approaches matters with a steady, solutions-oriented perspective, helping clients address legal challenges while staying focused on long-term business goals. In a highly regulated and fast-changing environment, she works diligently to help clients manage risk, maintain compliance, and move forward with confidence. Clients value Ms. O’Neill for her professionalism, responsiveness, and commitment to practical results. Her decades of experience in banking law make her a trusted resource for institutions seeking experienced legal support from an attorney who understands both the details and the bigger picture. At Cooley LLP, she continues to provide counsel grounded in insight, precision, and a strong dedication to client service.

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