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About me

Doug Dehler is a shareholder with the law firm of O’Neil, Cannon, Hollman, DeJong & Laing S.C., where he is the Chair of the Marketing Committee and a member of the Litigation Group. Mr. Dehler’s legal practice involves complex business litigation, including class action litigation, shareholder disputes and whistleblower (qui tam) lawsuits. Mr. Dehler also represents clients in a broad range of insurance matters, including insurance bad faith litigation.


Mr. Dehler was selected for inclusion in Wisconsin Super Lawyers in 2014 and 2015, in the category of Mass Torts and Class Actions. He was appointed and currently serves on the Legal Assistance Committee, a standing committee of the Wisconsin State Bar Association. He also serves on the Board of Directors of Legal Action of Wisconsin, Inc. Mr. Dehler is a long-time board member for the Friends of the Remington Center at the University of Wisconsin Law School. He also currently serves on the Leadership Board for Galilee Lutheran Church in Pewaukee, and is actively involved with Pewaukee Youth Baseball.


Practice areas


  1. Class Action: 34%
  2. Lawsuits & Disputes: 33%
  3. Personal Injury: 33%


Payment types:

Cash, Check, Credit card

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Contact info

O'Neil, Cannon, Hollman, DeJong & Laing S.C.

111 E Wisconsin Ave.,
Suite 1400
Milwaukee, WI, 53202-4867


WIGood Standing199103/01/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Inclusion in the category of Mass Torts and Class ActionsSuper Lawyers2015
Wisconsin Super LawyerLaw & Politics Magazine2015
Wisconsin Super LawyersMilwaukee Magazine2015
Wisconsin Super LawyerLaw & Politics2014
Wisconsin Super LawyerMilwaukee Magazine2014
Inclusion in the category of Mass Torts and Class ActionsSuper Lawyers2014
Leading attorney in area of class action litigationWisconsin's Top Rated Lawyers2012
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2005
Work experience
TitleCompany nameDuration
PartnerO'Neil, Cannon, Hollman, DeJong & Laing S.C.2012 - Present
PartnerShepherd, Finkelman, Miller & Shah, LLP2005 - 2011
Association namePosition nameDuration
Association of Trial Lawyers of AmericaMemberN/A
Milwaukee Justice CenterVolunteerN/A
Autism Society of Southeastern WisconsinMemberN/A
Wisconsin Association for JusticeMemberN/A
American Bar AssociationMemberN/A
Autism Society of WisconsinMemberN/A
National Autism SocietyMemberN/A
Milwaukee Bar AssociationMemberN/A
State Bar of WisconsinMemberN/A
Eastern District of Wisconsin Bar AssociationMember, pro bono committeeN/A
Legal cases
Case nameOutcome
Gagliano v. Medical Staffing Network, Inc., United States District Court for theN/A
Phones Plus, Inc. v. Hartford Life Insurance Company and Neuberger BermanN/A
Shorewest Realtors, Inc. v. Journal Sentinel, Inc., Circuit Court of MilwaukeeN/A
See all legal cases 
School nameMajorDegreeGraduated
University of Wisconsin Law SchoolLawJD - Juris Doctor1991
Washington UniversityN/ABS - Bachelor of Science1987