Wilson Sonsini Goodrich & Rosati announced a hire in the nation’s capital this month, adding an experienced partner to a practice area in which the firm saw a recent high-level departure

The firm announced on Nov. 1 that it has hired partner Stephen Heifetz from Steptoe & Johnson for its Committee on Foreign Investment in the United States (CFIUS) practice. The firm recently lost Donald Vieira, the former head of its CFIUS practice, to Skadden, Arps, Slate, Meagher & Flom.

Wilson Sonsini, which separately unveiled a leadership change last week that involved longtime firm chairman Larry Sonsini moving into a senior and founding partner role and corporate partner Katharine Martin becoming chair of the firm’s board, welcomed Heifetz as a partner in the firm’s regulatory and compliance practice in Washington, D.C.

Heifetz joins Wilson Sonsini after serving as co-chair of Steptoe’s regulation and compliance group. Before Steptoe, he had a hand in shaping laws and regulations related to CFIUS as a senior official in the U.S. Department of Homeland Security’s policy development office. Heifetz’s practice focuses on advising companies on the intersection of business and national security issues, including counseling clients on compliance and political risks and defending them in government investigations and enforcement actions, according to Wilson Sonsini.

“Our clients, particularly those doing business across U.S. borders, will benefit from Stephen’s range of regulatory expertise, which includes anti-money laundering, economic sanctions and other national security laws,” Wilson Sonsini managing partner Douglas Clark said in a statement.