Gregory S. Mager

Gregory S. Mager (Milwaukee, Wisconsin)

Gregory S. Mager

Attorney in Milwaukee, WI
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

Awards/Distinctions
• Selected for inclusion in The Best Lawyers in America®–Family Law in 2016
• Fellow, American Academy of Matrimonial Lawyers (2012–).
• Named one of "Milwaukee's Leading Lawyers" by M Magazine in Family, 2014 and 2015 issue; Divorce/Separation, 2013 issue; and in Divorce and Family, 2012 issue. Only 2-5% of the top ranked attorneys published by Avvo for each category were recognized.
• Selected for inclusion in Wisconsin Super Lawyers, Law & Politics and Milwaukee Magazine, 2013 and 2014.
• Martindale-Hubbell® Peer Review Rating™–AV Preeminent, reflecting an attorney who has reached the height of professional excellence and is recognized for the highest levels of skill and integrity.
• He has been given a rating of 10.0 (out of a possible 10.0) by Avvo, a national attorney rating service which uses a mathematical model to rate attorneys based on experience, professional achievements, industry recognition and professional conduct.
• Selected for inclusion in Wisconsin Super Lawyers Rising Stars, Law & Politics and Milwaukee Magazine, 2007, 2009, and 2010.
• American Bar Association Section of Family Law 2004-2005 Chair's Award, "For meritorious service exceeding what is expected of our leadership."

Appointments/Professional Services
• Training Committee, Collaborative Family Law Council of Wisconsin, Inc. (2014–)
• State Bar of Wisconsin, Family Law Section, Board of Directors (August 2010–July 2013, August 2013–)
• Editor in Chief, Wisconsin Journal of Family Law (2007–2008)
• Member, American Bar Association Section of Family Law CLE Committee (2005–2006)
• Vice-Chair, American Bar Association Section of Family Law Trial Practice and Techniques Committee (2001–2004, 2005–2006)
• Chair, American Bar Association Section of Family Law Trial Practice and Techniques Committee (2004–2005)
• Vice-Chair, American Bar Association Section of Family Law CLE Committee (2004–2005)
• Vice-Chair, American Bar Association Section of Family Law Bankruptcy Committee (2003–2004)
• Court Commissioner, Milwaukee County Circuit Court, Appointed by Hon. Diane S. Sykes (1998)

Articles/Presentations
Wisconsin Supreme Court
• Speaker, “Family Law 101” (June 2015)

Collaborative Family Law Council of Wisconsin, Inc.
• Speaker, Second Saturday Wisconsin (February 2015)
• Speaker, Second Saturday Wisconsin (October 2014)

Association of Family and Conciliation Courts Wisconsin/Leander Foley Matrimonial Inns of Court/Society of Family Lawyers
• Speaker, “Utilization of Mental Health, Counseling, and Medical Records in Family Law Cases: A view from the Bench, the Bar and Healthcare Professionals” (February 2015)

American Academy of Matrimonial Lawyers—Wisconsin Chapter
• Speaker, “May Non-Lawyers Draft QDROs?” (February 2015)
• Speaker, “Hot Tips: Double Counting Reminders” (March 2013)

O’Neil, Cannon, Hollman, DeJong & Laing S.C.
• Speaker, “Issues Relating to Recent Developments in the Legal Profession” (October 2014)

Society of Financial Service Professionals
• Speaker, “Financial Planning for a Second Marriage” (March 2012)

American Bar Association Section of Family Law
• Co-Producer, “Executive Compensation: Is it Income or is it Property?” (May 2006)
• Co-Producer and Moderator, “Direct Examination of the Financial Expert: How to Make Your Point and Not Lose Your Audience” (September 2005)
• Co-Producer and Moderator, “Hot Tips from the Experts” (August 2005)
Speaker, “Allocation of Dependency Exemptions in Paternity Case and Other Tax Tips” (August 2004)
• Producer and Moderator, “Challenging the Superego: How to Prepare for a Psychologist's Testimony” (April 2004)
• Co-Producer and Moderator, “Ethics at Trial in Spite of Your Client” (October 2003)
• Co-Producer and Moderator, “Preparing and Presenting Domestic Violence Protective Order Cases” (May 2003)

State Bar of Wisconsin Family Law Section
• Speaker, “Civil Procedure, Evidence, and Pretrial Discovery” (August 2014)
• Speaker, “Temporary Hearings—A Panel Discussion” (August 2014)
• Speaker, “Child Related Financial Issues, Property Division Maintenance” (August 2013)
• Speaker “Literature Review” (August 2000)
• Speaker, “Case Law Update” (June 1999)

Law Education Institute, Inc., National CLE Conference®, Family Law Program
• Speaker, “The Rules of Evidence: They DO Apply In Family Law” (January 2004)
• Speaker, “What Effective Negotiators Bring to the Table” (January 2003)
• Speaker, “Tricks of the Trade: Low Budget Computer Applications” (January 2002)
• Speaker, “Using a Psychologist as a Consulting Expert: Preparing Your Client for the Inevitable” (January 2001)
414-276-5000 414-276-5000 Call now
Credit Cards Accepted
Client Rating N/A
Peer Rating 5.0 of 5

Areas of Law

Areas of Law
  • Family Law
  • Civil Litigation
  • Mediation
  • Appellate Practice

Peer Rating

Peer Rating

Overall Peer Rating

 
5.0 out of 5.0
  • Meets very high criteria of general ethical standards
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Experience & Credentials

Firm Details
Position
Shareholder
Admission Details
Admitted in 1997, Wisconsin and U.S. District Court, Eastern District of Wisconsin
Credit Cards Accepted
Additional Payment Information
Fixed Hourly Rates
Fixed Fees Available
Law School Attended
Marquette University
Class of 1997
J.D.
University Attended
Marquette University
Class of 1992
B.A.
Political Science and Philosophy

Marquette University
Class of 1994
M.A.
Political Science
Associations & Memberships
•Milwaukee, Waukesha and Ozaukee County Bar Associations;
•State Bar of Wisconsin;
•American Bar Association;
•Society of Family Lawyers,
•Collaborative Family Law Council of Wisconsin, Inc.;
•Divorce Cooperation Institute, Inc.

Community Contributions

Community Contributions
Articles Blogs Q&A

Contact Information

Contact Information
Firm Address
O'Neil, Cannon, Hollman, DeJong & Laing S.C.
111 East Wisconsin Avenue, Suite 1400,
Milwaukee, WI 53202-4870
U.S.A.
Phone
414-276-5000 Call now
Fax
414-276-6581
Website
Social Networking
Office Information
Office Information
Gregory S. Mager
Shareholder
O'Neil, Cannon, Hollman, DeJong & Laing S.C.
111 East Wisconsin Avenue, Suite 1400,
Milwaukee, WI 53202-4870

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O'Neil, Cannon, Hollman, DeJong & Laing S.C. (Milwaukee, Wisconsin)