We are not your typical law firm; we work in a brownstone in historic Georgetown on a pretty cobblestone street with trolley tracks. Our clients don’t pay for fancy marbled walls and expensively leased space. We appreciate our clients’ business needs and demands, and we practice accordingly.

Lisa Dunner

Managing partner


Lisa is Managing Partner at Dunner Law and a past Chair of the ABA Section of Intellectual Property Law (ABA-IPL). She is recognized as one of the world’s top 250 women in IP and by World Trademark Review 1000 as one of the top 1000 trademark attorneys in the world. She was appointed by the U.S. Secretary of Commerce in 2016 to serve a 3-year term as a member of the U.S. Patent and Trademark Office Trademark Public Advisory Committee and to advise the Under Secretary of Commerce for IP and Director of the USPTO. Lisa’s practice focus is on strategic counseling related to a wide variety of trademark, unfair competition, false advertising, copyright, e-commerce and transactional matters. Formerly a partner at McDermott Will & Emery, Lisa has extensive experience in protection and enforcement of intellectual property and unfair competition rights for domestic and international issues.

She regularly counsels clients on best practices related to IP asset protection and management, finding efficient and strategic ways to maximize and manage IP assets. She also has significant experience in handling opposition and cancellation proceedings before the Trademark Trial and Appeal Board, litigation disputes in state and federal court, and contract negotiation and disputes. Lisa has testified before the U.S. Congress House of Representatives, Committee on the Judiciary, regarding the U.S. Copyright Office, Its Function and Resources, and she has spoken and written on numerous other occasions on trademark and copyright issues. Lisa is a Commissioner on the ABA Commission for Women in the Profession and Founding Editor-in-Chief of the ABA IPL’s flagship IP magazine, Landslide. Lisa is a former touring professional tennis player and achieved world rankings in both singles and doubles. She enjoys playing tennis, golf, hiking, gardening and rescuing animals.

Cassidy Johnston Grunninger



Cassidy is an Associate at Dunner Law, and her practice focus is on protection and enforcement of matters related to trademarks, false advertising, unfair competition, and copyright. She regularly conducts domestic and international trademark clearance searches, renders use and registrability opinions, and prosecutes trademark and copyright applications throughout the world. Cassidy also handles trademark and copyright audits and she drafts licensing and assignment agreements.

Prior to joining Dunner Law, Cassidy worked at the Recording Industry Association of America, focusing on copyright issues surrounding the recording industry, and she clerked at the U.S. Copyright Office, where she researched copyright law and policy for the General Counsel’s office. Cassidy also was a Legal Fellow in the Office of U.S. Congressman Doug Collins, and she worked at the House Committee on the Judiciary, assisting the Subcommittee on Courts, Intellectual Property, and the Internet on various IP issues.

Cassidy currently is an Editor for the ABA Section of Intellectual Property Law “Landslide” magazine.  During law school, she was the Senior Online Editor for the Journal of Intellectual Property Law and authored the Note, A Tale of Two Composers: An Argument for a Limited Expansion of Moral Rights for Composers, 24 J. Intell. Prop. L. 191 (2017). She is also actively involved in the performing arts scene in Washington, DC, serving as a Junior Board member of the Washington Performing Arts.

Adam Sikich

Senior Counsel


Adam is a Senior Counsel at Dunner Law, and he regularly counsels clients on the selection, clearance, protection, and enforcement of trademarks and copyrights throughout the world. He has extensive experience in managing clients’ portfolios, and he represents clients in opposition and cancellation proceedings before the U.S. Trademark Trial and Appeal Board, conducts intellectual property audits, and prepares intellectual property protection protocols for Dunner Law’s clients. Adam also counsels in the areas of false advertising, trade secrets, open source, and enforcement of IP rights on the Internet, including representing clients in domain name disputes, social media IP infringements, domain name monitoring, illegal streaming and downloading, drafting web site legal policies, ensuring compliance with DMCA provisions, and drafting domain name policies.

Adam has extensive transactional experience, including drafting and negotiating work-for-hire, joint development, partnership, hosting and website development, publishing, copyright permissions, IP settlement, licenses, assignments and non-disclosure agreements. Adam is a die-hard Chicago White Sox, a Star Wars aficionado, and the world’s greatest Little League coach.

Alex Houstoun

Alex Houstoun



Alex is an Associate at Dunner Law, and his practice focus is on protection and enforcement of intellectual property matters for Dunner Law’s entrepreneurial clients.  Alex manages Dunner Law’s participation in Amazon IP Accelerator Program of which Dunner Law is one of the select nationwide IP firms, providing counseling, advice and trademark registration for businesses participating in Amazon’s program.  Alex also conducts domestic and international trademark clearance searches, renders use and registrability opinions, and prosecutes trademark and copyright applications throughout the world.

Prior to practicing law, Alex worked as a publicist for Vintage & Anchor Books, a division of Penguin Random House. He also spent a summer working for the Penguin Random House Office of the General Counsel and assisted in the copyright case Penguin Random House v. Colting. Alex is the editor of a literary journal devoted to gothic and weird fiction and an avid bread baker.

Liz Delmar

Liz Delmar

Liz Delmar, Dunner Law’s Bookkeeper, has more than 25 years-experience in bookkeeping, records management, customer service and project management. She has a Certificate in Accounting from the University of Virginia and vast experience in working with law firms.

Liz works closely with the Dunner Law team to ensure that the firm’s financial records are up to date, managing client and vendor accounts and implementing standard accounting practices and procedures. She also assists clients with any accounting or records questions they may have.