Antonio Jeffrey Photo
Office Locations:
Chicago, Dupage

Antonio L. Jeffrey

Founding Partner

One of the Founding Partners of Jeffrey and Erwin Law Office, LLP, attorney Antonio L. Jeffrey represents victims of civil rights violations, personal injury matters, wrongful death claims, and workplace and catastrophic injuries. In doing so, Mr. Jeffrey relies on over a decade of experience serving as counsel for Fortune 500 companies, including major automotive manufacturers and multinational; retail companies in defense of products liability and workplace injuries, respectively; hospitals and physicians in medical malpractice claims; and numerous employers and insurance carriers in the defense of workers’ compensation matters. He has litigated cases in state and federal courts across the country, including Delaware, Oklahoma, Indiana, Mississippi, and Illinois, to name a few. 

After successfully representing companies for over ten years, Mr. Jeffrey now utilizes that experience to represent individuals injured as a result of civil rights violations, catastrophic personal injury matters, and workplace injuries. He also represents individuals facing criminal charges who have been wrongfully convicted due to constitutional violations.

Clients appreciate Mr. Jeffrey’s aggressive approach in handling their claims and admire his unparalleled responsiveness to their legal needs. His experience, knowledge of the law, and strong work ethic yield his ability to make his clients feel at ease as he fights to achieve favorable results.

It is because of the aforementioned that Mr. Jeffrey has become one of the elite attorneys in the Chicagoland area. The American Bar Association Torts and Insurance Practice Section selected him as one of the 23 emerging attorneys across the country by way of its distinguished Leadership Academy Class of 2013. Mr. Jeffrey also served as Co-Chair of ABA TIPS Workers’ Compensation Midwinter Conference in Chicago, IL in March 2014; served on ABA TIPSA Task Force on Leadership Diversity; and as Vice-Chair of several committees. Recently, Mr. Jeffrey was identified by The National Trial Lawyers as a Top 100 Civil Plaintiff Lawyer in Illinois.


  • University of Tulsa College of Law (JD) 2006
  • University of Oklahoma (MPA) 2006
  • University of Phoenix (MBA) 2003
  • Howard University (BA) 1999

Bar Admissions

  • U.S. District Court for the Northern District of Illinois, General and Trial Bar
  • United States Supreme Court
  • Supreme Court of the State of Illinois
  • Supreme Court of the State of Oklahoma
  • U.S. District Court for the Northern District of Oklahoma
  • U.S. District Court for the Western District of Oklahoma
  • U.S. District Court for the Eastern District of Oklahoma

Practice Areas

  • Civil Rights
  • Personal Injury
  • Workers' Compensation
  • Criminal Defense
  • Employment Discrimination

Contact Information:

Chicago Office

105 West Madison St., Ste 901 Chicago, IL 60602


DuPage Office

27475 Ferry Rd., Suite 143 Warrenville, IL 60555



Why Choose Us? See What Sets Us Apart

  • Confident
    Whether it’s fearlessly standing against major corporations in the name of justice in civil matters, or boldly fighting for the freedom of our criminal defense clients, we do what it takes to protect the rights and interests of our clients…period. To have attorneys who are not afraid to challenge the opposing side, and take the case to trial if necessary, is critical to having a successful outcome.
  • Aggressive
    We work hard to obtain the most value for your case. At the end of the day, the only thing that matters is that we help our clients achieve the best possible results. Our clients are, and will always be, our first priority.
  • Accessible
    Jeffrey & Erwin, LLP makes it a primary function of its daily practice to not only keep clients informed but to be available for any questions or concerns clients may have at any given time.
  • Experienced
    With a combined experience of over 25 years, the attorneys at Jeffrey & Erwin, LLP have the experience and resources necessary to represent their clients in the most effective way possible.
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