Areas of Practice
Education
- Brigham Young University, J. Rueben Clark Law School, J.D., summa cum laude, 1990, Order of the Coif, Editor-in-Chief, Brigham Young University Law Review
- University of Calgary, B.S. in Psychology, 1986
Judicial Clerkships
- Hon. Justice Clarence Thomas and former Chief Justice Warren E. Burger, US Supreme Court, 1992-1993
- Hon. John T. Noonan, US Court of Appeals, Ninth Circuit, 1990-1991
Bar & Court Admissions
- Arizona
Karl M. Tilleman
Partner
Collier Center201 East Washington Street
16th Floor
Phoenix AZ 85004
TEL: 602.257.5244
FAX: 602.257.5299
Karl M. Tilleman is the managing partner of the Phoenix office of Steptoe & Johnson LLP. As a partner in the Commercial Litigation Group, his practice focuses on litigating antitrust, intellectual property, RICO, insurance coverage and bad faith, construction, and environmental disputes. His clients include leaders in the insurance, health care, money transmitter, and entertainment industries.
Representative Matters
Recent and Current Matters:
- Representing the University of Southern California and Urban Partners in a multi-million dollar antitrust and RICO lawsuit in Federal Court in Los Angeles, California.
- Lead trial counsel for the Harlem Globetrotters in an intellectual property action brought in Federal Court by Meadowlark Lemon, Curly Neal, and other former Globetrotter superstars.
- Representing Western Union in a subpoena enforcement action versus the State of Arizona.
- Representing Allstate, AIG, Travelers, and other major insurance carriers in complex coverage and bad-faith actions.
- Representing UnitedHealth Group entities in administrative and judicial actions involving various health care disputes.
- Represented the City of Peoria in an alleged multi-million dollar toxic tort wrongful death action.
Noteworthy
Select News & Events
- Fourteen Steptoe & Johnson LLP Attorneys in Phoenix are Named Super Lawyers
- Tilleman Appointed Managing Partner in Steptoe's Phoenix Office
- Steptoe Launches Subprime Lending Litigation Team
- Steptoe Team Invalidates Extraterritorial Subpoenas in Phoenix
- Steptoe Litigation Team Quashes International Seizure Warrant
Selected Publications
- Co-author, “Closing the Book on CERCLA Section 107 ‘Joint and Several’ Claims by Liable Parties"1999, 18 Va. Envtl. L.J. 160
- Does the Tenth Amendment Pose Any Judicial Limit on the Commerce Clause After Garcia v. San Antonio Metropolitan Transit Authority and South Carolina v. Baker?1989, B.Y.U. L. Rev. 231














