William T. "Bill" Mathias

Will Planert is a Partner in the firm’s International Trade practice. He concentrates on representing multilateral and foreign-based corporations in a wide variety of international trade disputes, including antidumping and countervailing duty investigations, Section 201 (safeguards) cases, anticircumvention investigations, and customs compliance matters. Mr. Planert appears regularly before the U.S. Department of Commerce, the U.S. International Trade Commission, and the U.S. Bureau of ...

Danielle Morris has 15 years of experience advising clients on all aspects of international arbitration. Her practice spans both private and public international law, with a focus on investor-State arbitration. She has worked on a range of commercial and investment arbitrations, both institutional and ad hoc, from the pre-dispute and notice of dispute stage through merits submissions and hearings through to set-aside and enforcement. She also assists clients with investment planning and advis...

Brian D. Israel is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. Brian 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 Brian D. is held by other top lawyers in the same geographic and legal practice area.

Jacqueline Colclough is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Jacqueline, who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jacqueline is held by other top lawyers in the same geographic and legal practice area.

Area of Emphasis Jim Curry is the Managing Shareholder of the Firm’s Washington, D.C. office. Jim is an energy lawyer with years of experience in government service and private practice helping clients navigate difficult regulatory and strategic challenges throughout the energy sector. His clients include pipelines, utilities, energy producers, LNG terminals, investors, technology companies, chemical makers, and hydrogen infrastructure developers. Jim takes a pragmatic, business-minded ...

Matthew A. Roberson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Matthew A., who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew A. is held by other top lawyers in the same geographic and legal practice area.

Recognized as one of The Best Lawyers in America © in the fields of commercial litigation and intellectual property, Susan Metcalfe is a veteran trial attorney who knows what it takes to get the job done for her clients both inside and outside the courtroom. With over eighteen years’ experience as a trial attorney, Susan has significant, substantive experience with an extremely broad array of litigation, including: Intellectual property (trade secrets, trademark, noncompetition agr...

William R. Hollaway is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. William R., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William R. is held by other top lawyers in the same geographic and legal practice area.

With nearly two decades of experience in government and private practice, Matthew Kulkin is well positioned to help financial market clients navigate complex legislative, regulatory, compliance and enforcement issues. Mr. Kulkin joined the firm in 2022 from another international law firm where he co-chaired its financial services practice group. Before that, he served as the Director of the US Commodity Futures Trading Commission's Division of Swap Dealer and Intermediary Oversight.

Harry L. Gutman is a top attorney recognized by Best Lawyers in the practice area(s) of Government Relations Practice and Tax Law. Harry L., who practices law in Washington, District of Columbia, has been recognized since 1997. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Harry L. is held by other top lawyers in the same geographic and legal practice area.