About

John Mcdonnell is an attorney based in Sleepy Hollow, New York, serving clients through his work with Regeneron Pharmaceuticals, Inc. He focuses his legal practice on general practice matters, bringing a practical, detail-oriented approach to his work and a commitment to delivering thoughtful, reliable legal support. With a broad-based practice, Mr. Mcdonnell is positioned to address a range of legal needs with professionalism, efficiency, and sound judgment. Throughout his career, Mr. Mcdonnell has emphasized clear communication, careful analysis, and a client-focused mindset. He understands that legal matters often require both responsiveness and attention to detail, and he works to guide clients and colleagues with integrity and a solutions-oriented perspective. His approach reflects a strong dedication to helping legal matters move forward effectively while maintaining the highest professional standards. Admitted to practice under Bar Number 5313325, John Mcdonnell is committed to serving with diligence and professionalism. Whether handling day-to-day legal issues or more complex matters within a general practice setting, he strives to provide dependable support tailored to each matter’s unique circumstances. His work reflects a steady dedication to quality, trust, and results-driven legal service.

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