Christine Mary Costantino

With more than 23 years of experience working with the pharmaceutical and medical device industries, Ms. Walsh brings FDA regulatory expertise to clients seeking to achieve their business objectives. She regularly counsels clients facing FDA administrative actions like inspections, warning letters, and recalls. But her passion is helping companies prevent or respond to government investigations, and she conducts internal investigations to achieve compliance and to best position her clients to...

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

Deanne E. Maynard, chair of the Appellate and Supreme Court Practice Group, is a partner in the Washington, D.C. office, and a former Assistant to the Solicitor General at the United States Department of Justice. Ms. Maynard has argued 13 cases before the Supreme Court of the United States, and she has filed over 100 briefs in that Court. Her Supreme Court arguments include prevailing for the respondent in RadLAX Gateway Hotel, LLC v. Amalgamated Bank , an important bankruptcy case involving ...

Nat P. Calamis is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Nat P., 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 Nat P. is held by other top lawyers in the same geographic and legal practice area.

Jan Baran is a top attorney recognized by Best Lawyers in the practice area(s) of Government Relations Practice. Jan, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jan is held by other top lawyers in the same geographic and legal practice area.

Employers and business owners trust and rely on Joy Einstein’s legal counsel when it comes to their employment policies, practices and preventative measures designed to avoid costly litigation. Employers with unionized workforces rely on Joy’s legal counsel to handle unionization campaigns, unfair labor practice charges, CBA negotiations, strikes and grievance and arbitration procedures. Clients and peers benefit from Joy’s ability to design and clearly convey legal solution...

Kevin P. O’Brien is a partner in the firm’s Employee Benefits and Executive Compensation practice. His practice has concentrated in employee compensation and benefits for over 30 years. Kevin is widely known as a leader in a wide variety of subjects, including innovative defined benefit plan design, flexible benefits, ERISA fiduciary matters and executive compensation. Before joining the firm, Kevin worked in the Pension and Welfare Benefits Administration at the Labor Department ...

Owen Walker practices in the areas of commercial construction and government contracts law. He represents owners, developers, design professionals, contractors and subcontractors in all phases of construction projects, from contract preparation and negotiation through dispute resolution and litigation. Owen counsels regional, national and international clients on legal matters, including contract formation, administration and performance, claim entitlement and liability, contract termination ...

Caroline D. Ciraolo, former Acting Assistant Attorney General of the U.S. Department of Justice’s Tax Division, is a partner with Kostelanetz LLP and a founder of its Washington, D.C. office. Her practice focuses on federal and state civil tax controversies, including representation in sensitive audits, administrative appeals, and litigation, providing related tax advice, conducting internal investigations, and representing individuals and entities in criminal tax investigations and pro...

Mr. Frei is a partner in Frei, Mims and Perushek, one of the most experienced personal injury law firms in Virginia. Located in Fairfax, the firm has successfully resolved hundreds of cases involving personal injury and wrongful death, medical malpractice, products liability, and serious transportation accidents. Mr. Frei received his Bachelor of Science degree in Business Administration from the University of Nebraska in 1980 and his law degree from the University of Nebraska in 1983. He is ...