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About Graham
Biography
Graham P. Wiemer is the founding partner of Wiemer Law Group, LLC. Graham represents men and women in all aspects of family law. He often works with individuals on Wisconsin divorce, paternity, child custody and visitation, child custody jurisdiction, support, property division, domestic violence issues, domestic partnership dissolutions, and post-judgment matters. He represents parents and grandparents, and is often appointed as a Guardian ad Litem to represent the best interests of minor children. He is a trained and experienced mediator and assists parents and couples in resolving child-related and financial issues privately and without court involvement.
Graham is active in representing individuals in the collaborative divorce process. He is a member of the Collaborative Family Law Council of Wisconsin (CFLCW) and currently sits on the CFLCW Board of Directors.
Graham sees first-hand how collaborative practice helps reduce the negative impact of court on children and families. He believes in an interdisciplinary approach to the practice of family law and often incorporates techniques of the collaborative process into many of his cases. His experience as a Guardian ad Litem has taught him how to help parents understand the changing dynamics of their family from their children’s perspectives.
Graham also has substantial experience representing first responders, including police and firefighter unions and their members. He has represented police officers, firefighters, labor unions, and other municipal employees throughout the State of Wisconsin.
Graham earned his law degree from the University of Notre Dame Law School. Prior to entering law school, Graham received his B.A. in Political Science and Philosophy with an emphasis on Human Rights from the University of Dayton.
Practice Areas
2
Practice Areas
Divorce and Separation
50%
20 years
Family
50%
20 years
Fees and Rates
Awards
2026
Licenses
Licensed in Wisconsin for 19 years
State: Wisconsin
Acquired: 2006
No misconduct found
Location
Wiemer Law Group, LLC
(414) 250-7259
Mobile
11040 W. Bluemound Road, Suite 100, Wauwatosa, WI, 53226
wiemerlaw.com/Wiemer Law Group, LLC
(414) 250-7259
Mobile
384 W. Sumner Street, Suite 200, Hartford, WI, 53027
wiemerlaw.com/Graham P. Wiemer's Reviews
Avvo Review Score
19 Client Reviews
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Practice Areas
Showing 1 - 5 of 19 reviews
Posted by Russell | June 16, 2026 | Hired Attorney
A Dedicated Lawyer Who Will Fight For You and Your Family
Graham is family-centered, attentive, and takes a firm, no-nonsense approach. Throughout my complex divorce and custody case, he provided numerous creative strategies and practical solutions to every obstacle we faced. Graham made an incredibly difficult situation much more manageable, and his guidan...
Posted by Joe | June 16, 2026 | Hired Attorney
The best divorce attorney you can hire
Graham helped me with a difficult divorce, when I was in a difficult place. He always had my best interest in mind, was conscious about effective communication and cost, while his team worked together to get the best outcome for me financially and time frame. But, more importantly he fought for my c...
Posted by Jeannie | June 11, 2026 | Hired Attorney
I would recommend him to anyone that needs a family lawyer
Graham represented me in a matter regarding my son. He was what I didn't realize I needed in an attorney, and helped me protect my child
Posted by anonymous | June 11, 2026 | Hired Attorney
Thank you!
Attorney Wiemer and his staff provided excellent counsel to guide me through the divorce process. Couldn’t be happier with the deal he got me and the overall results.
Posted by Gary | May 13, 2026 | Hired Attorney
Graham is an attorney who looks out for his clients best interests.
Graham Wiemer, as my attorney, was extremely helpful at a difficult time with my divorce. From the first time that I had a conversation with him I felt that he had my best interests at heart. Working with him was comfortable as I felt that he treated me more like a friend than a client. His tone at m...
Graham P. Wiemer's Lawyer Endorsements
"Graham was appointed as guardian ad litem in a post-judgment divorce matter, and did a wonderful job advocating for his ward as well as helping the parties to resolve a very difficult situation. He worked tirelessly to address communication problems the parties had and to bridge the gap so the parties could effectively co-parent. I am thankful for his work and highly recommend Graham."
"I have worked opposite Atty. Wiemer on a number of cases and and have found him to be smart, insightful and creative. He works for find solutions and advance his client's wishes while avoiding unnecessary conflict, cost or delay. He is a strong advocate, but has a level personality that generates respect from his clients, other attorneys and the courts."
"Graham is an excellent attorney. I serve with him on the board of a family law organization. He is knowledgeable in the law and focused on advocacy for his clients. I recommend him without hesitation."
"Graham is a talented lawyer. He is both knowledgeable about the law and skilled in the courtroom."
"I endorse Graham. He is a highly skilled attorney that is well respected in the legal community."
"I endorse this lawyer."
"I endorse this lawyer."
"Graham is an excellent lawyer. He understands the unique issues that families face during divorce and custody/placement disputes. Graham is a fierce advocate, but he also has the ability to resolve cases for his clients successfully without a trial."
"Graham is creative, intelligent, and dedicated to achieving his clients' goals. I highly recommend him."
"I endorse this lawyer. Graham and I have worked together in a professional group. He is respectful and hard working. I would highly recommend him as a lawyer on a family law matter."
"Graham is an intelligent and dynamic lawyer. I have had the opportunity to work with Graham on several cases and also on the Board of Directors for the Foley Inns of Court. I highly recommend Graham for both family law matters as well as labor and employment."
"I highly endorse Attorney Wiemer. I have worked on opposite sides of the aisle from Attorney Wiemer and respect his ability and level of professionalism. I would highly recommend Mr. Wiemer to anyone in need of an attorney in his practice areas."
"Graham Wiemer is a smart, pragmatic, and courteous lawyer. His proactive and thorough legal approach ensures his clients' interests are protected at all times. Graham has argued before the Seventh Circuit and is admitted to the United States Supreme Court. Graham's experience and genuine approach make him a client's ideal attorney."
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Experience
Honors
2013
Super Lawyer, SuperLawyers
2012
Rising Star, SuperLawyers
2011
Rising Star, SuperLawyers
Associations
2012 - Present
Leander J. Foley, Jr. Matrimonial American Inn of CourtExecutive Committee Member
2010 - Present
United States Supreme Court Bar AssociationMember
2009 - Present
United States Court of Appeals for the Seventh CircuitMember
2009 - Present
United States District Court for Eastern District of WisconsinMember
2006 - Present
State Bar of WisconsinMember
2006 - Present
Washington County Bar AssociationMember
2009 - 2012
Leadership Germantown Board of DirectorsMember
Education
2006
Notre Dame Law School
JD - Juris Doctor
2003
University of Dayton
BA - Bachelor of Arts
Speaking Engagements
2014
GAL Training 2014
Guardian ad Litem Training
2014
American Inns of Court chapter
Dealing with Difficult Attorneys
Languages
English