Jason Domark



(305) 358-2996

(305) 704-5955

Jason focuses his practice on complex commercial litigation, with an emphasis on international litigation, fiduciary litigation, and real estate related litigation. Jason has created and managed worldwide litigation strategies for multinational corporations and individuals in disputes involving U.S., European, South American, Caribbean, and Asian jurisdictions. Jason frequently litigates fiduciary duty issues for corporations, partnerships, trusts, professionals, and other entities and individuals. Jason has also represented numerous developers, contractors, and land owners in all manner of real estate related disputes, including construction and design issues, delay claims, turnover litigation, easement rights, and eminent domain proceedings.        

Prior to joining the firm, Jason practiced at an international law firm for more than a decade where he served as counsel in numerous multimillion dollar lawsuits managing and conducting all aspects of pleadings, discovery, expert testimony, settlement, pre-trial, trial and post-trial proceedings. Examples include obtaining a $20 million judgment in an international partnership dissolution case, obtaining dismissal with prejudice of a $193 million suit asserted against a charitable foundation, and obtaining summary judgment on multimillion dollar class action construction delay claims asserted against a developer of a luxury condominium.

Jason previously served on the board of directors of Habitat for Humanity of Greater Miami as the Habitat Young Professionals president, president emeritus and networking chair, and currently serves as the RISE Membership Chair for Guitars Over Guns. Jason also maintains an active pro bono practice, having worked on matters for Lawyers without Borders, Lawyers Serving Warriors, the United Nations, Child Rights International Network, Americans for Immigrant Justice, Sprouting Scholars, and others.

Jason received his bachelor’s degree, with honors, from the University of Miami. Jason earned his law degree, magna cum laude, from the University of Miami School of Law and participated in the University of Miami Law Review.



Nine Cozen O’Connor Attorneys Recognized by the South Florida Legal Guide

February 02, 2021

Nine Cozen O'Connor attorneys have been honored by the South Florida Legal Guide for their work in South Florida over the last year.

Jason Domark Joins the Board of Directors for the Everglades Law Center

August 20, 2020

Jason Domark, a member of the firm’s Commercial Litigation Department, has joined the board of directors for the Everglades Law Center.

Jason Domark Appointed to Board of Directors of Estate Planning Council of Greater Miami

July 15, 2020

Jason Domark, member of the firm’s Commercial Litigation department, has been appointed to the Board of Directors for the Estate Planning Council of Greater Miami.

What happens when real estate Zoom meetings go awry?

May 21, 2020

Jason Domark was featured in the South Florida Real Estate News discussing how he has been conducting roughly a dozen Zoom depositions for an ongoing construction arbitration proceeding, while being at home with three young children.

Jason Domark Embodies an Easygoing Approach to Litigation

September 20, 2019

Jason Domark was recently featured in the Daily Buisness Review.

Cozen O’Connor Continues Growth in Miami Office with Addition of Three Commercial Litigators

March 22, 2017

Cozen O’Connor expanded its Miami office with the addition of three commercial litigators: Charles C. Kline, Jason Domark and Reid Kline, all joining as members. Charles Kline and Domark were both formerly with White & Case. Reid Kline joins the firm from Kelly Tractor Co.


Playing Nice in the Sandbox: Tips for Counsel and Co-Trustees in Trust Litigation

April 06, 2021

Jason Domark co-authored an article for the Daily Business Review discussing how co-trustees and their counsel must coordinate their efforts to ensure an effective and efficient representation.

Four considerations when coronavirus makes you a trustee

April 02, 2020

Jason Domark published an article to South Florida Business and Wealth discussing how there is a lot to know and understand as a new trustee and gives four considerations to help along the way.

Key Takeaways From the Buzz Aldrin Family Dispute [Daily Business Review]

April 15, 2019

Jason Domark, Charles C. Kline and Reid Kline discuss famous astronaut Buzz Aldrin settling a lawsuit with two of his children and his former business manager. The complaint, filed in Florida state court, alleged that the defendants assumed access to Aldrin's personal credit cards, bank accounts, trust money, space memorabilia and other property.

Turning the Plaintiff Against Itself Using the Wrongful Conduct Rule [Daily Business Review]

July 30, 2018

Jason Domark, Chuck Kline, and Reid Kline, co-authored, "Turning the Plaintiff Against Itself Using the Wrongful Conduct Rule" for the Daily Business Review.

How Accounting Claims Can Be Game-Changers in International Litigation

April 18, 2018

Jason Domark, Charles Kline, and Reid Kline, members in the firm's Commercial Litigation Department, published, "How Accounting Claims Can Be Game-Changers in International Litigation" for the Daily Business Review.

Industry Sectors


  • University of Miami, J.D., magna cum laude, 2004
  • University of Miami, B.A., high honors, 2001

Awards & Honors

Super Lawyers Rising Star 2010

Brickell Magazine 2015 Top 20 Professionals Under 40 

South Florida Legal Guide, 2021

  • District of Columbia
  • Florida
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. Court of Appeals for the Sixth Circuit
  • Supreme Court of Florida
  • U.S. Bankruptcy Court -- Eastern District of Michigan

Greater Miami Chamber of Commerce – Industry Growth – Banking & Financial Services Committee

Greater Miami Chamber of Commerce – Urban/Community Growth – Resilience Committee

Florida Bar – Real Property, Probate and Trust Law Section

Dade County Bar Association – Civil Litigation Committee

Dade County Bar Association –  Probate and Guardianship Committee

Guitars Over Guns – RISE Membership Chair - 2017-present

Habitat for Humanity of Greater Miami - Board of Directors, Young Professionals President, President Emeritus, and Networking Chair - 2013-2016

Estate Planning Council of Greater Miami - 2018- Present

Estate Planning Council of Greater Miami, Board of Directors - 2020