Jenner & Block hired Andrianna “Annie” Kastanek, a former assistant U.S. attorney and chief of appeals of the U.S. Attorney’s Office for the Northern District of Illinois. Kastanek is a partner and a member of the firm’s appellate and Supreme Court and investigations, compliance and defense practices.As chief of appeals in the Northern District, Kastanek supervised the attorney’s office criminal appellate practice before the 7th Circuit U.S. Court of Appeals. She also served as a legal …