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Peter Sommerhauser

Peter M. Sommerhauser

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Peter Sommerhauser
Peter M. Sommerhauser is a shareholder of the firm's Corporate Practice group in the Milwaukee office.

Peter's experience in corporate law covers a broad range of areas, including mergers and acquisitions, leveraged buyouts, business succession, and the structure of business financing.

Peter provides overall business and financial advice and planning to corporations, executives and owners. In addition, he has handled numerous acquisitions, ranging from management-leveraged buyouts to the acquisition and sale of publicly traded entities. He also serves on the boards of directors of several closely held and publicly held entities.

Peter joined the firm in 1969 and served on its management committee for 25 years.

Admitted To Practice


Wisconsin - 1969

Professional Associations

American Bar Association
State Bar of Wisconsin


Association for Corporate Growth – Member

APCO Worldwide – Board of Directors

Children’s Hospital Wisconsin – Board of Directors

Greater Milwaukee Committee – Member

Kohl’s Corporation – Former member of Board of Directors

Lake Valley Camp, Inc. – Board of Directors

Metropolitan Milwaukee Association of Commerce – Former member of Board of Directors

Northwestern Mutual Life Insurance Company – Former member of Board of Trustees

Mequon Fire & Police Commission – Former member

Penfield Children’s Center – Emeritus, Director


Listed in Best Lawyers (Corporate Law, Leveraged Buyouts and Private Equity Law, Mergers & Acquisitions Law, 1993 - 2021; Business Organizations (including LLCs and Partnerships), Closely Held Companies and Family Businesses Law, 2015 - 2021)

Recognized as Milwaukee "Lawyer of the Year" by Best Lawyers (Corporate Law, 2009; Mergers & Acquisitions Law, 2010; Leveraged Buyouts and Private Equity Law, Corporate Law, 2013; Business Organizations 2016)

Listed in Who's Who in American Law

Recognized by Chambers USA (Corporate/M&A, 2003 - present)

Listed as a top corporate attorney in Milwaukee Magazine's Top 75 Lawyers

Recognized as a Wisconsin Super Lawyer (2002, 2005 - 2019)

Recognized as a Five Star Wealth Manager (2010, 2012 - 2013)

AV Preeminent® Peer Review Rated by Martindale-Hubbell®


Juris Doctor, Northwestern University School of Law

Master’s Degree, University of Nebraska, Economics

Bachelor's Degree, University of Nebraska, Economics

833 East Michigan Street
Suite 1800
Milwaukee, WI
Susan L. Armbruster

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