Gerson A. Zweifach

Catherine Hancock Dorsey is a senior appellate attorney and shareholder in the Washington D.C. offices of Baron & Budd, where she works in the firm’s Opioid Litigation Group. She brings almost 17 years of experience at the Department of Justice to Baron & Budd’s robust opioid practice and has briefed and argued an array of complex cases in her lengthy career. At Baron & Budd, Ms. Dorsey handles, advises, and strategizes on appellate and other issues. “I am excite...

Ken has many varied interests outside of the law. In addition to travel and hiking, he is an avid reader, boxes and takes yoga for exercise and release, and studies ancient texts for insightful meanings. He has a wife of 30 years who runs her own business, and two sons, one a COO and entrepreneur and the other music engineering whiz who founded a music artist promotion company. Ken brings his “better way” focus to his life, his work and his family. Family dinners are legendary, li...

Eugene Goryunov is an intellectual property trial attorney at Cherry Johnson Siegmund James PC in Washington, District of Columbia. He has participated in more than 500 proceedings before the U.S. Patent and Trademark Office. Eugene frequently litigates cases in federal courts across the U.S. and manages appeals at the Federal Circuit. He also represents clients in Section 337 investigations at the U.S. International Trade Commission. Eugene has been recognized in patent law by Chambers USA, ...

Damien C. Specht is a top attorney recognized by Best Lawyers in the practice area(s) of Government Contracts. Damien C., who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Damien C. is held by other top lawyers in the same geographic and legal practice area.

Nathan J. Muyskens is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Nathan J., who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nathan J. is held by other top lawyers in the same geographic and legal practice area.

Mindy Herzfeld is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Mindy, who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mindy is held by other top lawyers in the same geographic and legal practice area.

For over twenty years, Kim has consistently provided sound legal guidance to her clients through trusted and honest representation. Kim enjoys working with clients to reach an amicable resolution of their family law matters when possible, yet vigorously advocates for them when litigation becomes necessary. Kim served as clerk to the Honorable Jane Marum Roush of the Circuit Court of Fairfax County, Virginia. She then worked at a family law firm in Fairfax for several years and served as an ad...

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.

Ian represents companies, executives, and fiduciaries in connection with Employee Retirement Income Security Act (ERISA) litigation, employee benefits and executive compensation matters, class actions, and other commercial disputes. Trained as a trial lawyer, Ian has focused almost exclusively on employee benefits related litigation for the past 15 years. What do you focus on? I focus my practice on ERISA litigation. With broad experience in this area, I help defend plans, fiduciaries, and co...

Robert D. Rosenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Railroad Law and Transportation Law. Robert D., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert D. is held by other top lawyers in the same geographic and legal practice area.