Filip Grzelak

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

John Parker Sweeney has more than 30 years of experience defending major class action and mass torts involving product liability and warranty, consumer protection, environmental, and toxic tort cases, allowing him to tailor an appropriate litigation response for any company to resolve "bet-the-company" risks. He regularly serves as national litigation counsel, creating and supervising comprehensive defense strategies in class action and mass tort cases across the country, most recently sweepi...

Janet L. Goldstein is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Janet L., 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 Janet L. is held by other top lawyers in the same geographic and legal practice area.

James N. Mastracchio is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. James N., 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 James N. is held by other top lawyers in the same geographic and legal practice area.

Sean Clancy is the team leader of Nixon Peabody’s Tax practice, and a member of the firm’s Public Company Transactions team. He assists clients with a broad range of tax and business planning matters and related tax policy matters. My focus Tax Planning I advise clients on federal tax planning, including assistance in structuring mergers and acquisitions and other transactions. In addition, I counsel private equity funds on domestic and cross-border taxation and corporate finance ...

Stephanie Monaco provides strategic counsel to investment management firms (including dually-registered investment advisers and broker-dealers) in their delivery of investment advice to a wide variety of investment advisory clients, including private funds, managed accounts, institutional and retail account services, and registered investment companies. She leverages her prior experience as an attorney with the U.S. Securities and Exchange Commission (SEC), and decades in private practice, to...

Thomas M. Cusick focuses his practice on complex family law negotiation and litigation. His pragmatic approach provides effective and efficient solutions for his clients. Tom believes in exploring all possibilities of resolving a matter outside of the courtroom. He is a strong proponent of negotiation and mediation. If litigation is unavoidable, Tom has significant first chair trial experience handling a variety of family law matters. Tom’s practice encompasses all areas of family law i...

Land use and zoning attorney Bill Kominers navigates governmental processes to help companies achieve the best use of their properties in Maryland and the District of Columbia. Bill’s idea of light reading on the weekend is scouring the footnotes of proposed new zoning codes. He is creative in using his exacting knowledge of land use law to shepherd developer and corporate clients through the approval process, crafting zoning solutions akin to selecting the correct rocks to traverse a s...

Ronald Machen, a member of the firm's global Management Committee and Chair of the Firm’s Litigation and Controversy Department is one of the nation's leading trial and white-collar defense lawyers. His practice focuses on government enforcement, corporate and congressional investigations, and litigating civil business disputes. An experienced litigator who has tried more than 35 cases to verdict, Mr. Machen specializes in litigating complex criminal and civil actions. He also routinely...

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.