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Jefferey Ogden Katz

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Phone: (312) 223-1699
Fax: (312) 223-8549

200 West Monroe Street, Suite 2025
Chicago, Illinois 60606
United States


Jefferey Ogden Katz is a leading litigation attorney and has handled numerous professional liability cases throughout the country. Mr. Katz and The Patterson Law Firm, LLC regularly represent individuals, private and public corporations and law firms in litigation, trials and alternative dispute resolution involving professional liability and disciplinary issues.

As a partner in the firm, Mr. Katz has originated and obtained a settlement in excess of $10 million in a legal malpractice matter involving complex intellectual property matters. He has also originated and obtained a judgment in the amount of $2.5 million for a professional athlete in an action involving a failed purchase of a professional sports franchise. Mr. Katz successfully defended an action on behalf of an NBA player in the 7th Circuit Court of Appeals brought by that player's former agent for breach of the player-agent agreement. The claim sought damages in excess of $1.2 million.

In addition, Mr. Katz represents attorneys before the Illinois Attorney Registration and Disciplinary Commission (ARDC); attorneys with respect to practice expansion and multi-jurisdictional practice issues; and candidates for admission to the Illinois Board of Admissions to the Bar.

Mr. Katz has served as the Chair of the Chicago Bar Association Young Lawyers Section of the Professional Responsibility Committee since 2009. He is a frequent speaker on professional liability issues and has presented to the Chicago Bar Association, American Association for Justice (formerly American Trial Lawyers Association) and American Conference Institute on professional liability issues. Mr. Katz is a notable media source and has been cited on ESPN and in Sports Illustrated on issues relating to professional liability.

Prior to joining The Patterson Law Firm, LLC in September of 2012, Mr. Katz worked for The Spellmire Law Firm where he personally handled numerous legal malpractice and professional liability cases. He is a graduate of the University of Wisconsin at Madison and received his law degree from Case Western Reserve University School of Law in 2004. Mr. Katz is licensed in Illinois and Wisconsin.

Mr. Katz's article "Attorneys, the Internet, and Hate Speech: An Argument for an Amended Model Rule 8.4" was published in the Seattle Journal for Social Justice, Volume 13, Issue 1, in Fall 2014.


Bachelor of Arts in International Relations and Political Science, University of Wisconsin at Madison, 2000
J.D., Case Western Reserve University School of Law, 2004

Jurisdictions Admitted to Practice

State of Illinois, November 2004

State of Wisconsin, September 2009

United States District Court, Northern District of Illinois, January 2005

United States District Court, Western District of Wisconsin, October 2008

United States District Court, Eastern District of Wisconsin, August 2014

United States District Court, Northern District of Indiana, February 2010

United States District Court, Central District of Illinois, June 2014

United States Court of Appeals for the Sixth Circuit, November 2014

United States Court of Appeals for the Seventh Circuit, September 2011

United States Supreme Court, October 2013

Admitted Pro Hac Vice in Ohio, Texas, Indiana, Michigan and DC state courts

Professional and Bar Association Memberships

Member, Illinois State Bar Association, Illinois Trial Lawyers Association, and American Association for Justice (formerly ATLA) (earning the Advocate distinction and am a Pound Fellow)

Chair, Chicago Bar Association Young Lawyers Section Professional Responsibility Committee (2009-2010, 2010-2011 and 2011-2012 years)

Founding Chair, American Association for Justice Professional Liability Litigation Group (2012-present).

Lectures, Articles & Recognition

Risk Management for the Plaintiff’s Attorney, AAJ Press (forthcoming)

Attorney’s Retaining Liens:  Know Your Rights But Assert Then Cautiously (Volume 20, Number 1, Winter 2018 Trial Journal of the Illinois Trial Lawyers Association). 

Seven Tips for Client Communications, AAJ Trial Magazine (July 2017)

Chicago Bar Association Tort Litigation Committee:  Avoiding the Dreaded Legal Malpractice Claim (Chicago, May 2017). 

Practicing Law Institute (PLI) Illinois Professional Responsibility MCLE Marathon 2017 (Chicago, April 2017). 

National Academy of Continuing Legal Education:  Ethics 2017 (6.0 credit hours of ethics presentation) (Chicago, February 2017).

American Association for Justice Winter Seminar:  Avoiding a Legal Malpractice Claim (Austin, Texas, February 2017). 

Demystifying the Law School Application Process, UIC Pre-Law Society (Chicago, September 2016)

Malpractice Risk Seminar:  Or How I Learned to Stop Worrying and Win My Cases (Chicago, January 2016)

Avoiding Malpractice:  10 Tips for Supervisory Attorneys, AAJ Trial Magazine (October 2015)

American Immigration Lawyers Association 2015 Ethics Conference Panelist (Chicago, May 2015)

Professional Liability Dispute Resolution, NBI Seminars (December 2014)

No Good Mental Note:  Keys to Progressing, AAJ Trial Lawyer Magazine (Summer Edition)

Attorneys, The Internet, & Hate Speech: An Argument for an Amended Model Rule 8.4, Seattle Journal for Social Justice (Summer 2014 issue)  

Avoidance of the Dreaded Legal Malpractice Claim, American Association for Justice Annual Convention (Washington, D.C., July 2014)

Streamlining Client Representation:  Leveraging new business structures, Law Bulletin Seminars (Chicago, June 2014)

Contributing Editor, Inside Counsel Magazine (2014)

So You Want to File a Legal Malpractice Case? American Association for Justice Annual Convention (Chicago, June 2012)

View from the Plaintiff’s Bar:  Adapting Your Claims and Litigation Strategies to New and Innovative Theories Being Brought by Your Adversaries, ACI/LPL Legal Malpractice Conference (New York, May 2012)

A Practical Due Diligence Checklist on Preventing the Most Common Attorneys Errors in Civil Litigation, ACI/LPL Legal Malpractice Conference (New York, May 2012)

Ethical Considerations Related to Modern Technology, Chicago Bar Association YLS Professional Responsibility Committee (Chicago, September 2010)

“Rules 1.3 and 1.4 of the Illinois Rules of Professional Conduct,” Half Moon Seminar (Chicago, October, 2006) 

Moderator:  Chicago Bar Association Seminars on Rules of Professional Conduct (December, 2009, June, 2010, December 2010, June 2011, December 2011, and June 2012)

Moderator:  Chicago Bar Association Seminar-State of the Profession (December 2012)  

SuperLawyers Rising Stars List 2013-2017 (Professional Responsibility)

Leading Lawyers Emerging Lawyer 2015-2016 and Leading Lawyer 2017 (Professional Malpractice Plaintiff and Defense; Commercial Litigation; Plaintiff Personal Injury and Plaintiff Products Liability)

American Association for Justice Trial Lawyers Care Award 2014 and 2017 (Finalist)  


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