Tomas Petkus



Chicago, IL





Tomas Petkus joined the firm in 1992. He pioneered the adaptation of computer technology to the practice of law, and is well known for integrating computers and digital technology and graphics with litigation.

Petkus conceived and applied the use of technology innovatively for effective and persuasive use in the courtroom. The earliest courtroom uses of bar coding, light pens, databases, digital depositions, imaging, digital videography and photography in the court room can be traced back to Petkus. Due to his innovations, Tobin, Petkus & Muñoz is widely known for its trial expertise and the use of technology to enhance those skills.

Tobin, Petkus & Muñoz have transformed the way in which trials are conducted, ensuring that the cases of their clients are clearly understood and are persuasive. In doing so, they have secured substantial courtroom victories, distinguishing them as among the country's top attorneys.

Tomas Petkus received his law degree from Chicago Kent College of Law where he was a member of the Moot Court Society and winner of the senior law student moot court competition. Since passing the bar, Petkus worked on computer and technology-related matters with the Chicago Bar Association. He is a past member and chair of the computer law office technology committee at the Chicago Bar Association and was also a member of the Association's Long Range Planning Committee. He spearheaded a project on electronic filing in the Circuit Court of Cook County. He has lectured widely on the use and adaptability of computers to the practice of law, including the annual Chicago Information Technology Show. He has received numerous recognitions and awards for services rendered to the bar. He graduated from the University of Illinois with honors. He is a member of the Illinois State Bar Association, Illinois Trial Lawyers Association, Chicago Bar Association, and Baltic Bar Association. Petkus speaks, reads, and writes Lithuanian.

Litigation Percentage

100% of Practice Devoted to Litigation

Certified Legal Specialties

  • Arbitration, Illinois Supreme Court, 1980

Bar Admissions

  • Illinois, 1980
  • U.S. Court of Appeals 7th Circuit, 1980
  • U.S. District Court Central District of Illinois, 1980
  • U.S. District Court Northern District of Illinois, 1980
  • U.S. District Court Southern District of Illinois, 1980


  • Illinois Institute of Technology Chicago-Kent College of Law, Chicago, Illinois
    • J.D., Doctor of Jurisprudence - 00/1980
  • University of Illinois, Chicago, Illinois
    • B.A., Bachelor of Arts - 00/1974
    • Honors: With Honors

Representative Cases

  • Prusis v. Hunter

Classes / Seminars

  • Lecturer/Presenter, Computer and Technology, Chicago Bar Association, 00/00/1993 to 00/00/1994

Professional Associations And Memberships

  • Chicago Bar Association, Chairman, Committee on Law Office Technology
  • Illinois State Bar Association, Member
  • Federal Bar Association, Member
  • Baltic Bar Association, Member
  • Chicago Computer Society, Member


  • Lithuanian