About

James M. Guinivan is a seasoned attorney with Dentons US LLP in Washington, DC, where he focuses his practice on transportation law. Based at 1900 K Street, N.W., James advises clients on a wide range of transportation-related legal matters, bringing a practical and business-oriented perspective to an industry shaped by regulation, operational complexity, and constant change. His work is grounded in a deep understanding of the legal and commercial issues that affect transportation providers, operators, and stakeholders. With decades of legal experience, James is known for delivering clear, strategic counsel tailored to the needs of each client. He approaches matters with diligence, responsiveness, and a commitment to helping clients navigate regulatory requirements and legal challenges efficiently. Whether addressing compliance concerns, transactional issues, or broader operational questions, he strives to provide guidance that supports informed decision-making and long-term business objectives. Clients value James’s professionalism, depth of knowledge, and steady approach to complex matters. He is dedicated to helping transportation clients manage risk, resolve issues effectively, and move forward with confidence. Through his work at Dentons US LLP, James continues to serve as a trusted advisor to clients seeking experienced counsel in the transportation sector.

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