About

Isabel Thelen is an attorney in Marshall Dennehey P.C.’s New York office, where she practices general law and supports clients with practical, thoughtful legal guidance. Based in New York, NY, Ms. Thelen brings a disciplined, detail-oriented approach to her work, helping clients navigate a wide range of legal matters with professionalism and care. Her practice reflects a commitment to clear communication, responsive service, and sound legal judgment. As a member of Marshall Dennehey P.C., Ms. Thelen is part of a respected firm known for delivering strategic representation and client-focused solutions. She understands that legal issues can be complex and often time-sensitive, and she works to address each matter with diligence and attention to the client’s goals. Whether assisting with everyday legal concerns or more nuanced issues, she strives to provide practical support rooted in strong legal analysis and a commitment to achieving the best possible outcome for those she serves. Licensed to practice in New York, Ms. Thelen is admitted under Bar Number 6217020. Her professional approach is grounded in responsiveness, preparation, and a genuine dedication to client service. Clients looking for a knowledgeable New York attorney with a broad legal perspective and a steady, dependable presence will find in Ms. Thelen an advocate focused on providing trusted counsel and effective representation.

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