[1] From 2013 to 2018, Lazarus was general counsel and chief strategy officer for the Tribune Corporation, following its exit from bankruptcy.

[2] On January 16, 2017, he was named by President Barack Obama to serve on the United States Holocaust Memorial Council.

He also served as Chief of Staff of the Federal Communications Commission from June 2008 to January 2012.

From 2004 to April 2009, he wrote a regular column for FindLaw, and he appeared as a guest expert on legal affairs for several television and radio stations, including The Daily Show with Jon Stewart.

His first book, Black Hills, White Justice, was about the legal history of the Sioux Nation's land claims against the United States for compensation for the Black Hills — for which his father, Arthur Lazarus, Jr. was a principal attorney — culminating in the United States Supreme Court's ruling in United States v. Sioux Nation of Indians.