Roger E. Warin

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

Lawrence M. Prosen is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration, Construction Law and Litigation - Construction. Lawrence M., who practices law in Washington, District of Columbia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lawrence M. is held by other top lawyers in the same geographic and legal practice area.

Bryan H. Parr is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Bryan H., 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 Bryan H. is held by other top lawyers in the same geographic and legal practice area.

Jonathan R. Wachs is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Cannabis Law, Copyright Law, Litigation - Intellectual Property and Trademark Law. Jonathan R., 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 Jonathan R. is held by other top lawyers in the same geographic and...

Peter E. Ciferri is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Peter E., who practices law in Potomac, Maryland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter E. is held by other top lawyers in the same geographic and legal practice area.

Sara W. Koblitz advises FDA-regulated clients on a range of issues with a particular focus on Hatch-Waxman patent and exclusivity, biosimilars, and the Orange Book. She helps drug and device manufacturers in various stages of product development and guides clients through the applicable regulatory requirements with respect to applications and submissions, device classification, potential exclusivities, promotional issues, and post-marketing requirements. Ms. Koblitz also counsels cosmetics, f...

O'Kelly E. McWilliams III is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. O'Kelly E., who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which O'Kelly E. is held by other top lawyers in the same geographic and legal practice area.

Elizabeth’s practice has focused exclusively on family law since 2016. She handles matters including divorce, custody, child support, spousal support, equitable distribution, business valuation, step-parent adoption, premarital agreements, protective orders, and enforcement issues. Her cases have included complex issues such as mental health concerns, domestic abuse, alcohol and drug addiction, parental alienation, financial tracing, and unilateral dissipation of assets. Elizabeth belie...

William C. Sjoberg is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. William 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 William C. is held by other top lawyers in the same geographic and legal practice area.

Ellen K. Harrison advises clients on a broad range of tax issues, including estate planning and administration, tax controversies, and income, gift and estate tax planning for individuals, businesses and charitable organizations. She has significant experience drafting wills, trusts, powers of attorney, prenuptial arrangements and buy-sell agreements, as well as a broad range of corporate documents and family partnership agreements. Her tax controversy and litigation experience includes Inter...