Amy Lester, most recently co-chief of the general crimes unit at the Southern District U.S. Attorney’s Office, is joining New York litigation boutique Petrillo Klein & Boxer as a partner in early February.

Lester, the firm’s first female partner, will join a 13-attorney law firm founded in 2010 by attorneys she previously worked with at the U.S. Attorney’s Office, including Guy Petrillo, former chief of the criminal division there.