About

Mark Viera is an attorney with Simpson Thacher & Bartlett LLP in New York, New York, where he practices in the firm’s General Practice group. Based in New York City, he brings a broad legal perspective to his work and supports clients with thoughtful, practical counsel tailored to their individual and business needs. Admitted to practice under Bar Number 5357629, Mr. Viera is positioned to assist clients navigating a wide range of legal matters in a fast-paced and demanding legal environment. As part of a leading law firm known for its sophisticated practice and client-focused service, Mr. Viera approaches each matter with professionalism, attention to detail, and a commitment to delivering clear and effective legal support. His general practice background reflects versatility and adaptability, allowing him to address a variety of legal issues with diligence and care. Whether working on routine matters or more complex legal concerns, he strives to provide responsive service and sound guidance that helps clients move forward with confidence. Mr. Viera’s practice is grounded in a strong commitment to client service and a practical understanding of the legal challenges individuals and businesses face. He values clear communication, strategic thinking, and reliable advocacy, all of which contribute to a trusted attorney-client relationship. Clients working with Mark Viera can expect a professional, solutions-oriented approach designed to help them achieve their legal goals efficiently and effectively.

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