About

Margaret O’Brien is an attorney with Willkie Farr & Gallagher LLP in Washington, DC, where she practices general law and provides clients with thoughtful, responsive counsel on a range of legal matters. Based in the nation’s capital, she brings a professional, client-focused approach to her work, helping individuals and organizations navigate legal issues with clarity, precision, and confidence. Her practice reflects a commitment to practical problem-solving and careful attention to each client’s unique goals and concerns. Known for her professionalism and dedication, Ms. O’Brien works to deliver clear guidance in a fast-paced legal environment where sound judgment and responsiveness are essential. She understands the importance of building trust through diligent preparation, effective communication, and a steady focus on client needs. Whether addressing day-to-day legal questions or more complex matters, she strives to provide dependable support and strategic insight tailored to each situation. Admitted to practice under Bar Number 5923933, Margaret O’Brien contributes to the firm’s work with a strong sense of responsibility and a commitment to high-quality legal service. Her Washington, DC practice reflects both the demands of a leading legal market and her dedication to serving clients with professionalism and care.

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