Timothy Miller is experienced in matters concerning attorneys’ and other professionals’ liability, directors’ and officers’ liability, partnership law, contract law and business torts.

Representing lawyers and law firms in malpractice (or non-malpractice) situations makes up a large portion of Tim’s practice. He has represented law firms ranging from solo practitioners to large, multinational law firms in matters alleging a wide range of malpractice in all types of forums, including trial and appellate courts, private arbitrations and private mediations.

Tim regularly represents lawyers and law firms accused of malpractice in connection with transactional and estate planning work. He has represented lawyers and law firms charged with negligence in their handling of litigation. Tim has defended lawyers from claims that they aided and abetted their clients’ wrongdoing, conspired with their clients to commit wrongful acts, tortiously interfered with contracts or business expectations, and/or committed fraud on behalf of their clients. Tim also has represented lawyers and law firms accused of charging excessive fees, and lawyers and law firms trying to collect unpaid fees. In addition, he serves as assistant general counsel to Armstrong Teasdale.


Tim was previously a lawyer and general counsel at Novack and Macey in Chicago, and joined Armstrong Teasdale in 2023.


  • Duke University School of Law  (J.D., high honors, 1985)
    • Order of the Coif
    • Duke Law Journal (Managing Editor)


  • Illinois
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Western District of Michigan
  • U.S. District Court, Northern District of Indiana
  • U.S. District Court, Northern District of Illinois (Trial Bar)
  • U.S. Court of Appeals, Seventh Circuit
  • U.S. Court of Appeals, Sixth Circuit

Professional Activities

  • Association of Professional Responsibility Lawyers
  • Chicago Bar Association
  • Mealey’s D&O Liability Litigation Reports (Former Editorial Board Member)


  • The Best Lawyers in America®, Legal Malpractice Law - Defendants (2021-present), Commercial Litigation (2023-present)
  • Martindale-Hubbell, Preeminent-Rated Attorney
  • Illinois Leading Lawyers (2004-present)
  • Illinois Super Lawyers® (2012-present)
Contact Us
  • Worldwide
  • Boston, MA
  • Chicago, IL
  • Denver, CO
  • Dublin, Ireland
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • London, England
  • Miami, FL
  • New York, NY
  • Orange County, CA
  • Philadelphia, PA
  • Princeton, NJ
  • Salt Lake City, UT
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
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Boston, MA
800 Boylston St.
30th Floor
Boston, MA 02199
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Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
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Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
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Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
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Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
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Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
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Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
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Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
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Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
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Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
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New York, NY
7 Times Square, 44th Floor
New York, NY 10036
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Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
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Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
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Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
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Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
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Salt Lake City, Utah
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
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St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
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Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
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Wilmington, Delaware