About

John Corgan is an attorney with Mayer Brown LLP in Washington, DC, where he practices in the area of general practice. Based in the nation’s capital, he brings a broad legal perspective and a client-focused approach to his work, helping clients navigate a wide range of legal matters with professionalism and care. With a strong commitment to clear communication and thoughtful problem-solving, John works to understand each client’s goals and develop practical, effective strategies tailored to their needs. At Mayer Brown LLP, John is part of a respected legal team known for delivering sophisticated counsel in complex and evolving legal environments. He approaches each matter with diligence, responsiveness, and attention to detail, recognizing that clients value both sound legal guidance and a trusted advocate who is accessible throughout the process. His general practice background supports a flexible and well-rounded understanding of legal issues, allowing him to assist clients across a variety of matters with confidence and precision. John is admitted to practice in Washington, DC, under Bar Number 5928908. In every matter, he is committed to providing professional representation grounded in integrity, legal knowledge, and a dedication to client service.

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