Louis R. Cohen

Appellate Practice

4.0 (1 reviews)

Washington, District of Columbia

36+ years experience

Wilmer Cutler Pickering Hale and Dorr LLP

Updated: Jan 24, 2026

Contact Information

202-663-6000

https://www.wilmerhale.com/en/people/louis-cohen

2100 Pennsylvania Avenue NW, Washington, DC 20036

Create an account to contact this attorney

Bio

Louis R. Cohen brings 36 years of legal experience to Appellate Practice cases in District of Columbia. With a practice built over over two decades, Louis R. Cohen understands Appellate Practice from every angle. Louis R. Cohen contributes to Wilmer Cutler Pickering Hale and Dorr LLP's reputation for effective advocacy. R. Cohen understands the stress legal issues create and works to ease client concerns. Louis R. Cohen maintains a practice in District of Columbia focused on delivering effective legal solutions.

Practice Areas

Appellate Practice

Awards & Recognition

Recognized: Appellate Practice
Recognized: Commercial Litigation
Recognized: Securities / Capital Markets Law
Practice Area: Antitrust Law
Practice Area: Mergers and Acquisitions Law
Special Focus: Supreme Court
Pro Bono Advocacy Award, ACLU Foundation of Southern California
National Trust for Historic Preservation - Public Policy Award
"Highly recommended” in PLC’s 2003/04 Dispute Resolution Global Counsel Handbook - Public Policy Award
Featured in an American Lawyer article identifying leading litigation departments (2002)
Selected for inclusion in the 2012, 2013 and 2014 Washington DC Super Lawyer lists

Recognized in Best Lawyers since 1989

Education

Harvard University, AB

Get Directions on Google Maps

Reviews

Robert Jackson

2 months ago

Exceptional counsel on a complex securities matter

Our company recently faced a significant shareholder dispute with potential SEC implications. We engaged Louis Cohen based on his long-standing reputation and his specific recognition in securities law. His 36 years of experience, particularly at a firm of WilmerHale's caliber, were immediately evident. He provided a masterful, strategic analysis of our position, drawing on deep knowledge of capital markets regulations that few general practitioners possess. His guidance through the appellate process was particularly insightful, turning a daunting situation into a manageable one. The outcome was precisely what we needed. If there was one minor critique, it would be that associate-level support on document review could sometimes lag, requiring a follow-up. However, Mr. Cohen's personal involvement and strategic acumen were never in question. He is a formidable attorney who inspires confidence.