Joseph "Joe" Walker

Tina Papagiannopoulos is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Tina, 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 Tina is held by other top lawyers in the same geographic and legal practice area.

Bob Daileader represents a wide variety of energy clients in the development, financing, and construction of energy infrastructure projects, as well as on the federal and state regulatory approvals needed for such projects. Bob has represented clients in the energy industry for more than forty years. My focus My practice is heavily focused on the development, financing, and construction of electric infrastructure projects, particularly renewable generation and transmission facilities. Electri...

Christine Keller advises a wide range of clients on all aspects of health and welfare plan design, administration, and funding including compliance with federal tax, ERISA, and other federal and state law requirements, plan and VEBA trust document drafting, participant disclosure, change in election issues, wellness program compliance, and claims and appeals. Her clients include employers, insurers, and service providers of all sizes. She draws on her prior IRS experience to provide practical...

Steve Levey is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Real Estate Law. Steve, who practices law in Potomac, Maryland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Steve is held by other top lawyers in the same geographic and legal practice area.

Roy Shannon is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law, Litigation - Land Use and Zoning, Litigation - Real Estate and Real Estate Law. Roy, who practices law in Alexandria, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Roy is held by other top lawyers in the same geographic and legal practice area.

Mark R. Rosman is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law and Litigation - Antitrust. Mark 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 Mark R. is held by other top lawyers in the same geographic and legal practice area.

Caroline P. Mayhew is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Caroline 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 Caroline P. is held by other top lawyers in the same geographic and legal practice area.

David Baron is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. David, 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 David 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...

Mr. Fox is the managing partner of Ivins, Phillips & Barker. He was named in 2012 by the Washingtonian Magazine for the fourth straight year as one of the outstanding tax lawyers in Washington, D.C., in the Washington Post Magazine's list of Super Lawyers for the third straight year, and has been named in Best Lawyers in America in each of the last ten consecutive years. Although, during his 47 years with the firm, Mr. Fox devoted a substantial portion of his activities to international a...