Warren Lupel is an accomplished litigator and trial attorney who represents lawyers, judges and other clients in matters involving professional responsibility and ethics. Warren also represents businesses in a broad range of commercial litigation.
In the area of professional responsibility, Warren represents judges in disciplinary proceedings before the Judicial Inquiry Board of Illinois and the Illinois Courts Commission, and represents lawyers in disciplinary proceedings and at trial. He also counsels individual attorneys and large law firms on potential conflicts of interest, ethical obligations, employee-lawyer matters and related issues. Warren frequently serves as an expert witness in legal malpractice lawsuits and as defense counsel to individual attorneys named in malpractice litigation. He also represents attorneys and law firms in a broad range of civil litigation, from real estate disputes to conflicts involving departing attorneys.
On behalf of corporate clients, Warren represents small businesses in a broad range of commercial litigation, contract disputes and other matters.
Warren is admitted to practice in Illinois and before the U.S. District Courts for the Northern District of Illinois (including the Trial Bar), the Southern and Central Districts of Illinois, and the Eastern District of Michigan, as well as the U.S. Court of Appeals for the Seventh Circuit and the U.S. Supreme Court.
A member of the Illinois Bar Foundation, Warren previously served as the organization's President (2002-2004) and as a member of its Board of Directors (1995-2006). He served on the Board of Trustees of John Marshall Law School (2004-2012). He serves on the Board of Directors of the Lawyers Trust Fund, and was Chair of the Illinois Judicial Ethics Committee (1993-2012).
Warren is a member of the Chicago Bar Association, where he serves on the Commercial Litigation Committee (Chairman, 2002-2004) and the Lawyer Regulation Committee. He has also served on the CBA's Professional Responsibility, Judicial Evaluation and Judiciary committees. As a member of the Illinois State Bar Association, Warren served as Chair of the Joint Committee on Professional Conduct and Vice Chair of the Special Committee on Ethics 2000, and was Risk Management Counsel for the ISBA Mutual Insurance Company. Since 1990, he has been a member of the Joint ISBA-CBA Committee on Judicial Compensation.
Warren is a member of the American Bar Association (Section of Litigation Committee on Professional Responsibility), the Federal Bar Association (Director, 1996-2003 and General Counsel, 1998-1999), the Association of Professional Responsibility Lawyers, the American Board of Trial Advocates and the Illinois Trial Lawyers Association (Board of Managers, 1990-1992). He is also a Past Chair of the Conference on Professionalism.
Among his numerous professional distinctions, Warren has been named an Illinois Super Lawyer (2003-2016), and was included on "The Top 100" list for 2011. He has received the Distinguished Service to Law and Society Award of the Fellows of the Illinois Bar Foundation, the Illinois Judges Association Founders Award, the ISBA Presidential Award of Distinction, the ISBA Governors Award, and the John Marshall Law School Distinguished Alumni Award. Warren has also been named a Fellow of the American Bar Foundation, listed in The Best Lawyers in America since 2006, and has been recognized since 2003 by the Leading Lawyers Network as a top Illinois lawyer in the areas commercial litigation, legal fee disputes and professional malpractice defense. Warren has the highest possible peer rating from Martindale-Hubbell (AV Preeminent) for ability and ethical standards.
In December 1999, Warren was among the inaugural class of 12 Laureates of the Academy of Illinois Lawyers presented to the Illinois Supreme Court. The Academy bylaws note that laureates "personify the greatness of the legal profession and help establish and maintain its highest principles through a pervasive record of service to the law, the profession and the public."
Since 2005, Warren has served as an Adjunct Professor of Law at Northwestern University. Previously, he was an Adjunct Professor of Law at John Marshall Law School. He is the author of numerous articles and treatises that have appeared in Chicago Lawyer, the DePaul Law Review, Illinois Bar Journal and Trial magazine, among other publications. He has served as a judge for the National ATLA mock trial competition and the Miner Moot Court at Northwestern University, and speaks frequently before legal associations, professional organizations and other industry groups at conferences and seminars nationwide.
Warren supports a number of non-profit organizations.