Demetri Sintsirmas


Demetri Sintsirmas is an associate in the Cleveland office of Lewis Brisbois and a member of the General Liability and Complex Business & Commercial Litigation Practices. Demetri has experience working with both large and small corporate clients throughout the litigation and appeals process.

Before joining Lewis Brisbois, Demetri worked as an assistant prosecuting attorney in one of Ohio's largest counties. In this capacity, he prosecuted a wide range of felony cases and has successfully represented the state in both bench and jury trials.

Demetri also has experience with appellate matters. He has served as a clerk to the Honorable Justice Michael P. Donnelly of the Ohio Supreme Court where he worked on wide range of civil appellate matters. He has also successfully defended a case before Ohio's Eighth District Court of Appeals and has experience in administrative appeals.

Demetri received his J.D. from Cleveland-Marshall College of Law in 2019. While in school, he served as Editor-in-Chief of the Cleveland State Law Review, participated on the school's Moot Court team, and externed for the Honorable Judge Dan A. Polster of the Northern District of Ohio.


  • State Bar Admissions
    • Ohio


  • Federal Bar Association
  • Cleveland Metropolitan Bar Association
  • Ohio State Bar Association


Cleveland-Marshall College of Law, Cleveland State University

Juris Doctor, 2019

  • Cleveland State Law Review, Editor-in-Chief
  • Moot Court, Team Member
  • International Law Student Association, President
  • Dean's List

Cleveland State University

Bachelor of Arts in Philosophy, 2014

  • Certificate in Biomedical Ethics

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