Recor Rieber, P.A.

Marcus Antonio Nielsen


Associate Attorney

Marcus Antonio Nielsen is a Florida native with international experience. Mr. Nielsen’s practice focuses on commercial litigation and arbitration with a passion for helping international clients navigate the American legal system. Mr. Nielsen’s past legal experience includes commercial litigation, bankruptcy, transactional business law, personal injury, and insurance insolvency. Mr. Nielsen’s Panamanian background enabled him to learn Spanish and he learned Portuguese by living and attending school in Brazil.

Prior to law school, Mr. Nielsen served as a First Lieutenant in the United States Army, Infantry. After graduating from United States Army Airborne School, and Ranger School, Mr. Nielsen served during Operation Enduring Freedom in Afghanistan. 

After serving in the U.S. Army, Mr. Nielsen attended Florida International University College of Law and Business where he obtained both a Juris Doctorate and Master of Business Administration. During his time at FIU, Mr. Nielsen was a senior member of the International Commercial Arbitration team and competed in the Willem C. Vis International Commercial Arbitration Moot in both Vienna, Austria and Hong Kong. He was a founding member and editor of the FIU World Arbitration and Mediation Review. He also was elected by the student body as the President of the Student Bar Association. While attending FIU, Mr. Nielsen gained experience clerking in positions involving personal injury, commercial litigation, immigration law, transactional business law, and criminal law.

While studying for his MBA, he was awarded the Foreign Language and Area Studies Fellowship, which enabled him to study Portuguese in Rio de Janeiro, Brazil. During his time in Brazil he gained unique insights into foreign legal environments by interning at the Ministerio Público and attending arbitral proceedings at the CAM-CCBC.

After graduating from FIU, he was awarded the HillVets Fellowship, which granted him the opportunity to work on the United States Senate Committee for Homeland Security and Governmental Affairs as a fellow in Washington D.C.

Marcus Antonio Nielsen has had unique life and work experiences, which lend towards helping clients solve their legal challenges.


Florida International University, J.D. 2018

Florida International University College of Business
International Masters in Business Administration, May 2018

Florida Atlantic University,
Bachelor of Arts in Political Science, magna cum laude, May 2010

Military and Government Service

Hillvets Fellow, Senate Homeland Security and Governmental Affairs Committee, Washington D.C. 

United States Army, Ret. Infantry Officer/ 1st Lieutenant 

Military Honors: Purple Heart • Afghanistan Campaign Medal • Combat Infantry Badge • Ranger Tab • Parachutist Badge


English (native)

Spanish (fluent)

Portuguese (intermediate)