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Gregory S. Mager

Gregory S. Mager

Practice areas:

Divorce & Separation, Child Custody, Child Support, Litigation, Family

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About Me

 


Gregory assists his clients with family law matters.  He uses his extensive skill, training, and experience in collaboration, negotiation, and litigation to help his clients achieve successful resolutions of their divorce, paternity, custody, placement, and support matters.  Gregory is a Fellow in the American Academy of Matrimonial Lawyers and an active member of the Collaborative Family Law Council of Wisconsin.  He is a member of the Divorce Cooperation Institute and is recognized by judges and peers as one of Wisconsin’s premier family law attorneys.  He is uniquely positioned to successfully represent clients in their family law matters, including those involving complex business, financial, and child-related issues.  His approach will produce the best results for the client and the client’s family, whether through litigation, mediation, or collaborative divorce.


 


Gregory Assists Clients With


 · Divorce


 · Collaborative Divorce


 · Cooperative Divorce


 · Paternity


 · Custody and Placement


 · Support


 · Post-judgment Matters


 · Mediation


 · Appellate Matters


 


Published Appellate Decisions


 · Estate of Laubenheimer, 2013 WI 76, 350 Wis. 2d 182, 883 N.W.2d 735


 · Lyman v. Lyman, 2011 WI App 24, 331 Wis. 2d 650, 795 N.W.2d 475


 


 


 

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Practice Areas

Licensed since 1997

  1. Family: 20%
  2. Litigation: 20%
  3. Child Support: 20%
  4. Child Custody: 20%
  5. Divorce & Separation: 20%

Payment

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

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Contact Info

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

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

Resume

License
StateStatusAcquiredUpdated
WIGood Standing199703/20/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Awards
Award NameGrantorDate Granted
Milwaukee’s Leading LawyersM Magazine2015
Milwaukee's Leading Lawyers in FamilyM Magazine2014
Wisconsin Super LawyersMilwaukee Magazine2014
Wisconsin Super LawyersLaw & Politics Magazine2014
Milwaukee's Leading Lawyers in Divorce/SeparationM Magazine2013
Wisconsin Super LawyersMilwaukee Magazine2013
Wisconsin Super LawyersLaw & Politics Magazine2013
Milwaukee's Leading LawyersM Magazine2012
Wisconsin Super Lawyers Rising StarsLaw & Politics Magazine2010
Wisconsin Super Lawyers Rising StarsMilwaukee Magazine2010
Wisconsin Super Lawyers Rising StarsLaw & Politics Magazine2009
Wisconsin Super Lawyers Rising StarsMilwaukee Magazine2009
Wisconsin Super Lawyers Rising StarsMilwaukee Magazine2007
Wisconsin Super Lawyers Rising StarsLaw & Politics Magazine2007
Chair's AwardAmerican Bar Association, Family Law Section2005
Chair's AwardAmerican Bar Association, Family Law Section2004
10.0 out of 10.0 ratingAvvoN/A
AV RatingMartindale-HubbellN/A

Work Experience
TitleCompany NameDuration
ShareholderO'Neil, Cannon, Hollman, DeJong & Laing S.C.2004 - Present

Associations
Association NamePosition NameDuration
Collaborative Family Law Council of Wisconsin, Inc.Training Committee2014 - Present
State Bar of Wisconsin, Family Law SectionBoard of Directors2013 - Present
American Academy of Matrimonial LawyersFellow2012 - Present
State Bar of Wisconsin, Family Law SectionBoard of Directors2010 - 2013
Wisconsin Journal of Family LawEditor-in-Chief2007 - 2008
American Bar Association Section of Famly Law CLE CommitteeMember2005 - 2006
Wisconsin Journal of Family LawAssociate Editor2005 - 2006
American Bar Association, Family Law Section, Trial Practice and Techniques CommitteeVice-Chair2005 - 2006
American Bar Association Section of Family LawChair's Award2004 - 2005
American Bar Association, Family Law Section, Trial Practice and Techniques CommitteeFormer Chair2004 - 2005
American Bar Association, Family Law Section, Bankruptcy CommitteeVice-Chair2003 - 2004
American Bar Association, Family Law Section, Trial Practice and Techniques CommitteeVice-Chair2001 - 2004
Milwaukee County Circuit CourtCourt Commissioner1998 - 1998

Education
School NameMajorDegreeGraduated
Marquette University Law School LawJD - Juris Doctor1997
Marquette UniversityPolitical ScienceMA - Masters1994
Marquette UniversityPolitical Science/PhilosophyBA - Bachelor of Arts1992

Speaking Engagements
Conference NameTitleDate
Wisconsin Supreme CourtFamily Law 1012015
Collaborative Family Law Council of Wisconsin, Inc.Second Saturday Wisconsin2015
Association of Family and Conciliation Courts Wisconsin/Leander Foley Matrimonial Inns of Court/Society of Family LawyersUtilization of Mental Health, Counseling, and Medical Records in Family Law Cases: A view from the Bench, the Bar and Healthcare Professionals2015
American Academy of Matrimonial Lawyers—Wisconsin ChapterMay Non-Lawyers Draft QDROs?2015
O’Neil, Cannon, Hollman, DeJong & Laing S.C.Issues Relating to Recent Developments in the Legal Profession2014
Family Law WorkshopCivil Procedure, Evidence, and Pretrial Discovery2014
Family Law WorkshopTemporary Hearings-A Panel Discussion2014
Collaborative Family Law Council of Wisconsin, Inc.Second Saturday Wisconsin2014
State Bar of Wisconsin, Family Law WorkshopChild Related Financial Issues, Property Division Maintenance2013
American Academy of Matrimonial Lawyers—Wisconsin ChapterHot Tips: Double Counting Reminders2013
Society of Financial Service ProfessionalsFinancial Planning for a Second Marriage2012
American Bar Association, Family Law Section PresentationExecutive Compensation: Is it Income or is it Property?2006
American Bar Association, Family Law Section PresentationHot Tips from the Experts2005
American Bar Association, Family Law Section PresentationDirect Examination of the Financial Expert: How to Make Your Point and Not Lose Your Audience2005
Law Education Institute, Inc., National CLE ConferenceThe Rules of Evidence: They DO Apply In Family Law2004
American Bar Association, Family Law Section PresentationChallenging the Superego: How to Prepare for a Psychologist's Testimony2004
American Bar Association, Family Law Section PresentationAllocation of Dependency Exemptions in Paternity Case and Other Tax Tips2004
Law Education Institute, Inc., National CLE ConferenceWhat Effective Negotiators Bring to the Table2003
American Bar Association, Family Law Section PresentationEthics at Trial in Spite of Your Client2003
American Bar Association, Family Law Section PresentationPreparing and Presenting Domestic Violence Protective Order Cases2003
Law Education Institute, Inc., National CLE ConferenceTricks of the Trade: Low Budget Computer Applications2002
Law Education Institute, Inc., National CLE ConferenceUsing a Psychologist as a Consulting Expert: Preparing Your Client for the Inevitable2001
State Bar of Wisconsin, Family Law WorkshopLiterature Review2000
State Bar of Wisconsin Annual ConventionCase Law Update1999