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William D. Mansell

Criminal defense Attorney at Wausau, WI

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About William

Learn William’s areas of practice.

I have been married 27 years and have two 21 year old sons attending UW Madison.  I enjoy boating, fishing, skiing, reading and spending time in Northern Wisconsin. After graduating from law school, I worked as an assitstant district attorney, I also supervised a four county region of the State Public Defenders Office for over 4 years and worked at the Maeder law office for 13 years. I have been in my own office since 1999. 

Licensed for 42 years
State WI
Status Good Standing
Acquired 1980
Updated 12/05/2022

We have not found any instances of professional misconduct for this lawyer.

Contact William

Mansell Law Offices, SC
415 Division St
PO Box 1786
Wausau, WI, 54402-1786


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  • Free Consultation 20 minutes
Payment methods
Cash, Check


AVVO RATING 10.0 (Superb)

Work Experience

  • Attorney
  • Mansell Law Office SC
  • 1999 - 2014
  • Attorney
  • Jerome A. Maeder SC
  • 1989 - 1999
  • Attorney
  • Wisconsin State Public Defender
  • 1984 - 1989
  • Attorney
  • Jerome A. Maeder SC
  • 1982 - 1984
  • Assistant District Attorney
  • Marathon County District Attorney Office
  • 1980 - 1982
View all work experience


  • University of Wisconsin Law School
  • JD - Juris Doctor
  • 1980

Legal Cases

  • St Paul Mercury v Zastrow
  • Supreme Court win


  • Wisconsin Association for Justice
  • Member
  • 2008 - Present
  • Wisconsin Association of Criminal Defense Lawyers
  • Board of Directors
  • 1991 - Present
  • Marathon County Association of Criminal Defense Lawyers
  • Past President
  • 2010 - 2011
  • Office of Lawyer Regulation District 16 Committee
  • Chairman
  • 2005 - 2014
  • Wisconsin Association of Criminal Defense Lawyers
  • Past President
  • 1997 - 1998
  • Lincoln County Bar Association
  • Past President
  • 1985 - 1986
View all associations

Languages Spoken

  • English


  • Peer Review Rated
  • Martindale-Hubbell
  • 2017
  • Angell Scholar
  • University of Michigan
  • 1973

Speaking Engagements

  • Getting the Best Outcome: Negotiating Settlements
  • Negotiation
  • 2012

Attorney endorsements

Received (6)
Given (2)
Endorse William
Personal injury Attorney | Jan 16
Relationship: Fellow lawyer in community
"I endorse this lawyer. Talented dedicated attorney."
Unknown Attorney | Apr 05
Relationship: Fellow lawyer in community
"Top-notch attorney. Highly respected in the legal community."
Personal injury Attorney | Dec 17
Relationship: Fellow lawyer in community
"I have known Bill Mansell personally and professionaly for over 22 years. Bill is compassionate and enthusiastic when it comes to representing clients in each of his specialty areas - criminal defense, personal injury, family, etc. His level of expertise and professionalism has been witnessed and appreciated by fellow attorneys, judges, and clients. I have seen Bill "in action" and give him the strongest possible endorsement."
Criminal defense Attorney | Dec 17
Relationship: Worked together on matter
"I endorse this lawyer. I have known Bill for many years and have worked together with him on cases and been opposing counsel on cases and referred cases to him. We have also worked together in public minded organizations."
Criminal defense Attorney | Dec 17
Relationship: Fellow lawyer in community
"Bill is one of the very best lawyers I have known in my 33 years of practice."
Criminal defense Attorney | Dec 17
Relationship: Other
"I've know Bill since he was an assistant district attorney in Wausau. During that time he was knowledgeable, skilled, and most importantly, fair, being able to see my position, even if he didn't always agree with it. I was pleased to see him leave the Dark Side, and become a defense attorney, where he has honed and sharpened those skills to fight for his clients in negotiations and in court. He also has been willing to support his fellow defense counsel and to combat erosion of Constitutional rights meant to protect our clients. I heartily endorse him."
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Workers compensation
Criminal defense