W. Wayne Siesennop

Siesennop & Sullivan
Madison, Wisconsin 53562


Areas Of Practice

Automotive Disputes
Product Liability


Managing Partner

Mr. Siesennop is AV® Preeminent™ Peer Review Rated by Martindale-Hubbell®, the highest recognition possible in the legal industry, for his professionalism and ethics.

Practice areas
  • Construction law/litigation defense                                                                                               
  • Engineer/architect liability defense
  • Construction contract law
  • Fire loss defense
  • Construction mediation/arbitration
  • Professional liability defense
  • Insurance defense
  • Insurance coverage

  • Wisconsin, 1978
  • U.S. District Court, Eastern District of Wisconsin, 1978
  • U.S. District Court, Western District of Wisconsin, 1978
  • U.S. Court of Appeals, 7th Circuit, 1978
  • U.S. Supreme Court, 1978

  • Marquette University, J.D., 1978
  • University of Illinois, Ph.D., 1966
  • University of Illinois, M.S.M.E., 1963
  • University of Missouri at Rolla, B.S.M.E., 1961

  • Certified Civil Mediator

Associations and memberships
  • State Bar Association of Wisconsin

Representative cases

  • St. Clare Hospital of Monroe v. Schmidt, Garden, Erickson, Inc., 148 Wis. 2d 750 (Ct.App.1989)
  • Sedbrook v. Zimmerman Design Group, Ltd., 190 Wis. 2d 14, 526 N.W.2d 758 (Ct.App.1994)
  • Estate of Lyons v. CNA Ins. Cos., 207 Wis. 2d 448 (Ct.App.1996)
  • Gebov v. TRL Inc., 159 F.3d 993 (7th Cir.1998)

Biographical details
  • Tau Beta Pi
  • Pi Tau Sigma
  • Listed in: "Best Lawyers in America," 2008
  • "Super Lawyers," 2008-2012
  • Licensed Professional Engineer, Wisconsin

Seasoned Milwaukee Attorneys Defend Design Professionals and Healthcare Providers

Wayne Siesennop and Pat Sullivan have been succesfully defending architects, engineers, contractors, doctors, dentists, nursing homes and assisted living facilities in civil lawsuits throughout Wisconsin for over thirty years.  They have over 60 years experience as defense attorneys between them. 

The lawyers at Siesennop & Sullivan have been repeatedly recognized by their peers for their legal ability and ethical practice, which has earned them AV® Preeminent™ Peer Review Ratings by Martindale-Hubbell®, the highest recognition possible in the legal industry.
Siesennop & Sullivan, Attorneys at Law
200 North Jefferson Street
Suite 200
Milwaukee, Wisconsin 53202

Fax:     414-223-1199

Email: [email protected]