Neenah Office Team
Brehmer Law LLC
The Brehmer Law LLC Team
The dedicated and knowledgeable legal team at Brehmer Law LLC has a wide range of experience in the areas of estate planning, business law, real estate law, probate, trust administration, and non-profit law.
To learn more about the people who will represent your legal interests, read on.
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Matthew D. Brehmer
Managing Partner
Background
Attorney Matthew D. Brehmer is licensed in Wisconsin and Florida. Additionally, he is a Certified Public Accountant and Certified Exit Planning Advisor. By having his unique dual designation (lawyer and CPA), Matt can provide more specialized and custom planning for his clients. Matt has been practicing law since 2013.
At the beginning of his career, he worked for a firm specializing in estate and tax planning for high-income wealthy individuals. He was co-author of “Tax Planning Opportunities After the American Taxpayer Relief Act: Tools, Tips, and Tactics” in 2014. Shortly after that, he joined a local Neenah law firm.
Matt was born in Neenah and grew up in the Fox Valley and Green Bay area, so establishing a practice in Neenah was important to him. Matt became a shareholder at that local Neenah law firm in 2019 and practiced there until October 2021.
On November 1st, 2021, Matt started his law firm, Brehmer Law LLC, in downtown Neenah where he continues to develop his practice with an emphasis on estate planning, business transactions, and tax planning.
Matt stays busy helping his clients, as well as being involved in many local organizations, such as the Leadership Fox Cities Alumni Association (President), Fox Valley Estate Planning Council (Past President), Reach Counseling Services (Treasurer), Fox West Chamber (Director), Rotary Club of Neenah (President Elect), and Future Neenah (member of Maintenance Committee).
Amanda Rosenbeck
Director of Firm Operations
Background
Amanda joined the firm as Director of Firm Operations in December of 2021. She is responsible for financial management, human resources management (including recruitment), benefits administration, vendor relationship management, marketing, and managing the buildout of our current office and future offices.
She comes to the firm with over two decades of experience in operations and human resources management in a variety of industries within the Fox Valley. Her background includes project management, employee relations, talent acquisition, and account development.
Amanda was born and raised in Neenah but currently resides in Combined Locks. When not working, she enjoys spending time with her husband and 4 children, boating, rooting for the Packers, and attending her children’s many sporting events.

Olivia Murray
Administrative Assistant
Background
Olivia joined the firm as an Administrative Assistant in August 2025, supporting the Neenah office. Olivia earned her degree in Political Science and Public Administration from Winona State University in Winona, Minnesota. She gained valuable experience interning for the Winona County Public Defender’s office where she developed strong client communication skills. Aspiring to continue her education in law school, Olivia seeks to gain more legal experience here at Brehmer.
Olivia grew up in Neenah but is originally from Wisconsin Rapids. Outside of work Olivia enjoys running, hiking, and spending time with friends and family.
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