McDermott Will & Emery has added a former Department of Justice official to its Washington office, the firm announced Wednesday.
Warren Rosborough has joined McDermott as a partner in the firm's antitrust and compliance practice group. He was formerly a trial attorney with the Antitrust Division of DOJ.
In an interview, Rosborough declined to go into much detail about his work at DOJ due to confidentiality reasons, but said that he had conducted a number of merger investigations across a broad spectrum of industries including telecommunications, semiconductor manufacturing, oil services, and aerospace and defense.
At McDermott, Rosborough focuses his practice on civil antitrust, including mergers and government investigations. Before joining DOJ, Rosborough was an associate at McDermott’s D.C. office.
“It will be a good chance to provide both merger and litigation counsel,” Rosborough said of his return to the firm.
“Not only is he a very strong antitrust lawyer, he adds recent Antitrust Division experience in a wide range of industries that are of key interest to many of our clients, including the defense and aerospace, media, oil services equipment and high tech industries,” Joseph Winterscheid, McDermott partner and head of the antitrust and competition practice group, said in a written statement.