Patricia Zeigler
Of Counsel
Washington, D.C.
Patricia Zeigler, Of Counsel in the Washington, D.C., office, focuses her practice on antitrust law with particular emphasis in Hart-Scott-Rodino Act compliance and counseling. Her experience includes advising clients on issues of reportability and interpretations of the Hart-Scott-Rodino Antitrust Improvements Act and its regulations.
Pat also has experience in the applicability of foreign premerger requirements and filings with regulators in the European Union, Asia and Canada.
Pat served as antitrust counsel to two large industry groups establishing Business to Business exchanges for E-commerce transactions. She currently serves as general counsel to five large trade associations in a wide range of industries. In addition, Pat works with trade groups to set up and run joint purchasing organizations.
Prior to joining the firm, Pat practiced antitrust law for over a decade with Pillsbury Madison & Sutro.
In addition to being admitted in the District of Columbia, Pat is also admitted in California (inactive).
