Matthew A. Brill

Carmine R. Zarlenga is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law. Carmine R., who practices law in Washington, District of Columbia, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carmine R. is held by other top lawyers in the same geographic and legal practice area.

Thomas J. McKee, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Bankruptcy. Thomas J., who practices law in McLean, Virginia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas J. is held by other top lawyers in the same geographic and legal practice area.

William Walsh is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law. William, who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.

Brian R. Sanderson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Health Care, Medical Malpractice Law - Defendants and Professional Malpractice Law - Defendants. Brian R., who practices law in Fairfax, Virginia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian R. is held by other top lawyers in the same geographic and legal practice area.

Erika Harmon Arner is a nationally recognized leader in trial practice before the Patent Trial and Appeal Board (PTAB) and related appeals to the U.S. Court of Appeals for the Federal Circuit. She consistently ranks as one of the top three female attorneys appearing in PTAB trials and was named a PTAB Litigator of the Year by Managing Intellectual Property. She has argued and won a number of landmark cases at the PTAB and Federal Circuit for both patent challengers and patent owners. Erika&rs...

Jay E. Silberg is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Jay E., who practices law in Washington, District of Columbia, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jay E. is held by other top lawyers in the same geographic and legal practice area.

Personal injury and medical malpractice victims, and those who have been injured by the federal government, turn to Karl Protil when they need a lawyer who has a 20 year record of winning such cases. Clients depend on Karl when the stakes are high, and when their situations call for a lawyer who is not afraid to take chances when it comes to bringing the much needed emotional and financial closure they deserve. Victims benefit from his unique technical skill-set which includes both deep knowl...

Sheila Millar leads Keller and Heckman’s consumer protection regulatory practices and brings deep experience to a range of public policy and regulatory matters, including advertising and promotions, sustainability and environmental claims, connected products, privacy, cybersecurity, and product safety. She counsels United States (U.S.) and international businesses on compliance questions and processes, represents them in regulatory enforcement matters, and advocates on their behalf befo...

Jeremy B. Root is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships) and Real Estate Law. Jeremy B., who practices law in Fairfax, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeremy B. is held by other top lawyers in the same geographic and legal practice area.

Bob Wellen, a partner of the firm, has practiced tax law for nearly 35 years. His practice involves planning, structuring and negotiating business transactions and representing taxpayers seeking private letter rulings from IRS and tax policy determinations from IRS and the Treasury Department and in controversies with IRS. He also serves as an arbitrator and as an expert witness in commercial disputes involving tax issues. Bob grew up in Jersey City, New Jersey. He graduated from Yale College...