John Sullivan
Recognized since 2021
Billings, Montana
Appellate Practice
Commercial Litigation
Criminal Defense: White-Collar
John is an associate in Holland & Hart's government investigations practice group and its complex civil litigation practice group.
John previously served in the U.S. Department of Justice as an Assistant U.S. Attorney in the District of Montana. He prosecuted a wide variety of federal offenses while working closely with the Federal Bureau of Investigation, Drug Enforcement Administration, and various state and local law enforcement agencies. John has also briefed and argued cases before the United States Court of Appeals for the Ninth Circuit. He counsels companies and individuals in complex civil litigation matters and in all stages of government investigations, including those by grand juries, the Department of Justice, and state and federal agencies.
Before joining Holland & Hart, John served as a law clerk to the Honorable Sam E. Haddon of the United States District Court for the District of Montana.
- Lawyer Page: https://www.hollandhart.com/jsullivan
- 401 North Thirty-First Street, Suite 1500
Billings, MT 59101
- Montana, Montana
- Idaho, Idaho
- U.S. District Court for the District of Montana
- U.S. Court of Appeals for the Ninth Circuit
- U.S. Court of Appeals for the Federal Circuit
- U.S. Bankruptcy Court for the District of Montana
169 The Best Lawyers in America® awards
71 Best Lawyers: Ones to Watch® in America awards
- Appellate Practice
- Commercial Litigation
- Criminal Defense: White-Collar
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