Ellen D. Marcus

Maria Simon is an award-winning attorney who serves as the firm’s Managing Partner. While Maria’s practice is quite versatile, she specializes in family law, divorce, custody disputes, Collaborative Divorce, business law, and litigation. Frequently appearing in court nationwide on behalf of her clients, Maria has considerable experience in the Federal District Court, U.S. Court of Appeals, Bankruptcy Court, and the State courts of Virginia, District of Columbia, and Maryland. She ...

Kim, a Martindale-Hubbell AV Preeminent rated attorney, is one of the founding Partners of the insurance subrogation firm of Rathbone Group, LLC. Recognized as a National Women in Law Honoree, a Super Lawyer Rising Star for 4 years, as an Inside Business One to Watch, and as one of the Top 25 under 35 in Cleveland, she has focused on insurance subrogation throughout her entire legal career. Kim was elected Managing Partner in 2019. Her responsibilities include supporting the firm’s clie...

In Jeff Schwaber’s nearly thirty years at Stein Sperling, he has established a stellar reputation not only for his record in the courtroom, but also for creatively and successfully resolving complex business, employment and commercial litigation cases. An exceptionally talented trial lawyer who prides himself on applying innovative strategies to intricate corporate matters, Jeff delights in “solving unsolvable problems.” Having grown up in a family of doctors who were passio...

Tania Klam is a cum laude graduate of George Mason University (B.A. in Government and International Politics with a minor in Legal Studies) and a graduate of the Penn State Dickinson School of Law (J.D. 2009). She is admitted to practice in Virginia, District of Columbia, New York, and Florida. She is fluent in Arabic and focuses her practice on Family Law. Ms. Klam began her legal career as a prosecutor in Brooklyn, New York where she served as an Assistant District Attorney. While there, sh...

Eric Zimmerman is a recognized Medicare law and policy authority and registered lobbyist who represents clients before Congress and administrative agencies, and helps clients navigate federal legislative and regulatory processes related to Medicare coverage, coding, reimbursement and compliance. He primarily counsels and represents hospitals and health systems, ambulatory surgery centers, clinical laboratories, pharmaceutical, biotechnology and device manufacturers and suppliers, medical trad...

Rob Niccolini is co-chair of the firm's Healthcare Practice Group. He represents management in employment litigation and labor disputes, with special experience in the health care, technology, insurance, manufacturing, government contracting, hospitality and retail industries. His practice includes all facets of employment discrimination, harassment, wage and hour, ADA, FMLA, ERISA, covenants not to compete and employment torts, as well as labor arbitration, union campaigns and unfair labor p...

Jennifer P. Hughes is a top attorney recognized by Best Lawyers in the practice area(s) of Gaming Law and Native American Law. Jennifer P., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer P. is held by other top lawyers in the same geographic and legal practice area.

Constantine G. Papavizas is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law. Constantine G., who practices law in Washington, District of Columbia, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Constantine G. is held by other top lawyers in the same geographic and legal practice area.

Shannon M. Bloodworth is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Shannon M., 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 Shannon M. is held by other top lawyers in the same geographic and legal practice area.

Kevin M. Bell is a top attorney recognized by Best Lawyers in the practice area(s) of FDA Law. Kevin M., 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 Kevin M. is held by other top lawyers in the same geographic and legal practice area.