About

Jan Costello is an attorney with Pierson Law Firm LLC in Darien, Connecticut, where he focuses his practice on general legal matters and provides thoughtful, practical guidance to individuals and businesses seeking experienced counsel. Based in Darien, CT 06820, Jan brings a professional, client-centered approach to his work, helping clients navigate legal concerns with clarity, responsiveness, and attention to detail. As a general practice attorney, he is prepared to address a broad range of legal issues with the flexibility and perspective that clients value when facing important decisions. Known for his steady judgment and approachable style, Jan Costello works closely with clients to understand their goals and develop solutions tailored to their unique circumstances. He recognizes that legal matters can be stressful and often require both careful analysis and clear communication, and he strives to make the process as straightforward and manageable as possible. His commitment to practical advice and dependable advocacy reflects a dedication to serving clients with professionalism and integrity. Jan Costello is admitted to practice in Connecticut, Bar No. 2653905. Through his work at Pierson Law Firm LLC, he continues to build trusted relationships with clients throughout the Darien area and beyond, offering reliable legal support rooted in responsiveness, diligence, and a strong commitment to client service.

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