Schiff Hardin LLP was a national law firm with more than 300 attorneys practicing out of seven offices nationwide — Ann Arbor, Chicago, Lake Forest, New York, Newport Beach, San Francisco, and Washington, DC.

[2] It was a general practice firm serving corporate clients.

[citation needed] In 1889, Hitchcock & Dupee gained Northern Trust as a client; the company continued to turn to Schiff Hardin for all legal advice until the Arent Fox merger.

[4] Schiff Hardin opened a Washington, D.C. office in 1977.

2002 brought a suburban Chicago office in Lake Forest.