About
Tyler J. Oldenburg is a seasoned Florida-based attorney whose litigation practice spans business torts, contract disputes, non-compete enforcement, and complex commercial cases. He has served as lead trial counsel in multimillion-dollar litigation, earning defense verdicts and successful outcomes in jury and bench trials, including cases involving trade secrets, employment agreements, and corporate disputes.
Tyler graduated with a Juris Doctor from the Walter F. George School of Law at Mercer University and holds a Bachelor of Arts from Emory University. He is admitted to practice law in Florida and has built his legal career in Jacksonville, where he remains deeply involved in the professional and civic community.
Tyler’s practice also includes bankruptcy, creditors’ rights, shareholder litigation, and real estate disputes. His litigation strategy is complemented by transactional experience in business formation, acquisitions, employment agreements, and real estate deals. As part of his outside general counsel practice, he provides holistic counsel to businesses.
Tyler has secured notable victories, including successfully defending a municipality against a $12.5 million breach of contract claim and prevailing in a trade secret and contract dispute on behalf of former employees. He has also led high-profile litigation involving a celebrity shareholder dispute tied to major product sales on the Home Shopping Network.
Recognized as a Best Lawyers in America honoree and Super Lawyers Rising Star (2021), Tyler was also named a Jacksonville Business Journal 40 Under 40 honoree in 2024. He is Chairman of the 2025 Players Championship and actively participates in professional organizations such as the Florida Defense Lawyers Association and the Chester Bedell Inn of Court.
Tyler J. Oldenburg continues to deliver high-impact legal solutions through strategic litigation, insightful counsel, and a results-driven approach tailored to business clients across Florida.
Law Office Affiliations
- Shareholder, Marks Gray, P.A.
- Member, Jacksonville Bar Association
- Member, Leadership Jacksonville
- Member, The Florida Bar
- Member, Florida Defense Lawyers Association
- Member, The Federation of Defense and Corporate Counsel
- Member, Rotary Club of Deerwood
Licensed State
- Florida
Education
- Walter F. George School of Law at Mercer University
Juris Doctor (JD) - Emory University
Bachelor of Arts (BA)
Awards & Badges






- Arbitration
- Litigation
- Chapter 11 Bankruptcy
- Chapter 13 Bankruptcy
- Chapter 7 Bankruptcy
- Copyright Application
- Copyright Infringement
- Trademark Application
- Trademark Infringement
- Corporate And Incorporation
- Licensing
- Limited Liability Company (LLC)
- Mergers And Acquisitions
- Partnership
- Securities and Investment Fraud
- Securities Offerings