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About me

I represent individuals in all matters affecting the family including collaborative practice, mediation, divorce, prenuptial agreements, child custody and placement matters, as well as paternity, adoption, guardianship and estate planning. 

I have extensive experience representing individuals in the Collaborative Divorce Process and am the past Chair (2011) for the Collaborative Family Law Council of Wisconsin (CFLCW) Board of Directors and served as CFLCW's Training Chair for four years from 2007 to 2011.  I frequently train other professionals in Collaborative Practice and have presented at International Academy of Collaborative Professionals Annual Conference, the State Bar of Wisconsin, the Italian Institute for Collaborative Law and numerous seminars for CFLCW.

I also have a Masters in Social Work and am trained and experienced as a mediator assisting parents and couples in resolving child-related and financial issues privately and without court involvement.  In 2015 I co-founded the Family Mediation Center with Susan Hansen and we have  offices in Milwaukee and Mequon.  We will open a third office in 2016 in Waukesha and intend to provide a positive resource for families throughout southeastern Wisconsin.  



Photos and videos

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Practice areas


  1. Family: 75%
    15 years, 300 cases
  2. Mediation: 25%
    15 years, 50 cases



Hourly ($250-350/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

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  • Michael S. Waddington

    I endorse Gregory. He is a highly skilled attorney that is well respected in the legal community.


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  • Paul J. Milaeger

    I endorse this lawyer. Gregory is committed to his clients well being and thoroughly knows the law.


    Paul Milaeger Divorce and separation Attorney
    Relationship: Fellow lawyer in community

Contact info

Hansen & Hildebrand, S.C.

126 N. Jefferson Street Suite 401
Milwaukee, WI, 53202-6120


WIGood Standing200103/24/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Lawyer of the Year - Collaborative LawBest Lawyers2016
Legal InnovatorState Bar of Wisconsin2015
Super LawyerSuperLawyers2015
Best LawyerBest Lawyers2015
Super LawyerSuperLawyers2014
Best LawyerBest Lawyers2014
Super LawyerSuperLawyers2013
Best LawyerBest Lawyers2013
Best LawyerBest Lawyers2012
Super LawyerSuperLawyers2012
Best Lawyer, Collaborative Family LawBest Lawyers in America2011
Best LawyerBest Lawyers2011
Super LawyerSuper Lawyers Magazine2011
Super LawyerSuper Lawyers Magazine2010
Rising StarSuper Lawyers Magazine2009
Rising StarSuper Lawyers Magazine2008
Work experience
TitleCompany nameDuration
AssociateMichael Best & Friedrich, LLP2001 - 2002
Academic StaffUniversity of Wisconsin - Milwaukee1996 - 1999
Association namePosition nameDuration
Collaborative Family Law Council of WisconsinChair2011 - Present
Collaborative Family Law Council of WisconsinBoard Member2006 - Present
Publication nameTitleDate
Innovations in Family Law PracticeCollaborative Practice2008
School nameMajorDegreeGraduated
Marquette University Law SchoolLawJD - Juris DoctorN/A
Speaking engagements
Conference nameTitleDate
International Academy of Collaborative Professionals 2011 ForumYou're a Trained Colloaborative Professional, Now How Do You Develop a Collaborative Practice.2011