Oliver S. tum Suden Headshot

Oliver S. tum Suden


Mr. tum Suden is an associate in the Atlanta office of Johnson Fistel.  He is part of the firm’s commercial, shareholder derivative, and securities class action practices and has experience with all aspects of trial practice and discovery, including drafting factual investigation, litigation demands, drafting and responding to pleadings and discovery, expert discovery, motion practice, and alternative dispute resolution. 

Mr. tum Suden has played key roles in several high-stakes actions and achieved favorable results for clients.  For example, his work was instrumental in the settlement of Hines v. Gowen, et al., No. 2:20-cv-04673 (E.D. Pa.), which alleged breaches of fiduciary duty and other violations of law, resulting in the adoption of significant corporate governance reforms and payment of cash settlement.

Mr. tum Suden focuses his practice on complex commercial litigation, including securities class actions and shareholder derivative actions, representing businesses and individuals wronged through fraud and other violations of law.

Prior to joining Johnson Fistel, Mr. tum Suden served as Assistant Attorney General in the Commercial Transactions and Litigation Division of the Georgia Office of the Attorney General, where he prosecuted and defended breach of contract actions, contested asset valuations, and represented clients including Governors Brian Kemp and Nathan Deal, educational institutions under the University System of Georgia, Georgia Lottery Corporation, Georgia Composite Medical Board, Georgia Department of Transportation, and Georgia Department of Revenue, among others.  Notably, Mr. tum Suden wrote an amicus curiae brief on behalf of the Georgia Department of Revenue in Heron Lake II Apartments, LP et al. v. Lowndes County Board of Tax Assessors, 306 Ga. 816 (2019) that was influential in overturning the trial court’s decision.

During law school, Mr. tum Suden served an Honors Clerk at the U.S. Securities and Exchange Commission in the Enforcement Division’s Complex Financial Instruments Unit, focusing on fraud in connection with sophisticated financial instruments. While at the SEC, Mr. tum Suden investigated an insider trading ring and built a successful case against a hedge fund manager for misrepresenting assets under management.

Mr. tum Suden was admitted to the State Bar of Georgia in 2018 and is currently admitted in good standing with the following courts:

  • All courts in the State of Georgia
  • The United Stated District Court for the Northern District of Georgia

Mr. tum Suden received an award for his outstanding contributions to the Journal of Intellectual Property. 

Mr. tum Suden received his Juris Doctor degree in 2018 from the University of Georgia School of Law, where he was in the top half of his class, served as Notes Editor on the Journal of Intellectual Property, was the President of the Asian Law Students Association, was a member of Phi Alpha Delta A.H. Stephens Chapter, and acted as the Hearing Officer for the Honor Court. Mr. tum Suden graduated cum laude from West Virginia University with a Bachelor of Science degree in Business Administration.

Mr. tum Suden is an active member of the Georgia Asian Pacific American Bar Association and University of Georgia Mentor program.