About

Frederick Ryan Castillo is an attorney with Mayer Brown LLP in New York, NY, where he practices in the area of general practice. Based in the firm’s New York office, he brings a thoughtful, client-focused approach to his work, helping individuals and organizations navigate a broad range of legal matters with professionalism and care. As a general practice attorney, Mr. Castillo is positioned to address diverse legal needs with adaptability, precision, and a strong commitment to practical solutions. Known for his disciplined and responsive approach, Mr. Castillo understands that clients benefit from clear communication, careful analysis, and sound judgment at every stage of a matter. He works to provide counsel that is tailored to each client’s specific goals and circumstances, with an emphasis on efficiency, clarity, and strategic problem-solving. His role at Mayer Brown LLP reflects a dedication to high-quality legal service within a respected national law firm environment. Licensed in New York under Bar Number 5015458, Frederick Ryan Castillo serves clients with professionalism and attention to detail. His practice is grounded in a commitment to helping clients move forward with confidence, whether they are facing routine legal questions or more complex business and personal matters. Through his work, he continues to support the firm’s tradition of delivering reliable and effective legal representation.

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