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Tatum O'Brien


About Tatum O'Brien

When you think of a quality that describes the attorney working for you, does “tenacious” come to mind? That’s what Tatum’s clients say about her.

Tatum was born and raised in Western North Dakota. Her extensive experience in and out of the courtroom, coupled with a work ethic that simply doesn’t stop, has earned her a solid reputation as an attorney who represents her clients with tenacity and skill.

Tatum’s areas of concentration include criminal law, personal injury, and general litigation. Prior to joining the firm, she was a law clerk for all eight judges in the East Central Judicial District, Cass County, North Dakota.

Tatum earned her undergraduate degree in Sociology with criminal justice emphasis from North Dakota State University, Fargo, North Dakota. She graduated with distinction from the University Of North Dakota School Of Law. While in law school, Tatum was a law clerk at the Morley Law Firm, Grand Forks, North Dakota. Tatum also spent a summer as an extern with the US Attorney’s Office, District of North Dakota.

Over her years in practice, Tatum has become recognized as a highly skilled and experienced attorney representing clients in criminal and personal injury cases. She has extensive experience helping clients who have experienced issues of medical malpractice, serious personal injury, and wrongful death.

Leadership Positions

  • President, North Dakota Association for Justice (2015-16)
  • Board of Governors, American Association for Justice


  • Minnesota State Bar Association
  • State Bar Association of North Dakota
  • Cass County Bar Association
  • North Dakota Association for Justice
  • Clay County Bar Association
  • South Dakota Bar Association
  • Minnesota Association for Justice


  • University of North Dakota School Of Law



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