Robert A. Mathers

  • Office:
    • Oshkosh

      2905 Universal Street
      Suite 2
      Oshkosh, WI 54904


      411 East Wisconsin Avenue
      Suite 1000
      Milwaukee, WI 53202

  • Telephone: (920) 232-4855 (414) 287-1239
  • Fax: (920) 232-4895

Bob Mathers is a Shareholder and Chair of the Tax Section at von Briesen. Bob also is the firm’s Business Practice Group Leader. 

Bob provides legal and business advisory services to Midwest businesses and their owners with a focus on closely-held businesses, estate planning and private wealth services. He is a Certified Public Accountant and is AICPA Accredited in Business Valuation (ABV) and is an AICPA Personal Financial Specialist (PFS). He leverages his prior experience as one of the country’s largest CPA firm’s National Tax Director, and CEO of its Wealth Management subsidiary, to provide tax and transactional guidance to businesses and individual clients. He regularly provides guidance to CPA firms, financial services firms, and the accounting and investment advisory industries.

He is recognized by The Best Lawyers in America® as “Lawyer of the Year” for Trusts and Estates in Green Bay (2017). He is listed in The Best Lawyers in America® for Trusts and Estates (2014-2019).

Bob’s professional memberships include American Institute of Certified Public Accountants, Wisconsin Institute of Certified Public Accountants, American Academy of Attorney-CPAs, Fox Valley Estate Planning Council, Winnebagoland Estate Planning Council, the State Bar of Wisconsin (Director, Tax Section) and the American Bar Association (Tax Section). 

He is a member of the Board of Directors of the Oshkosh Chamber of Commerce and Unlock The Fox Investment Committee. 

Practice Areas:


  • Mitchell Hamline School of Law, J.D., 1990
  • University of Wisconsin-Eau Claire, B.B.A., cum laude, 1985

Bar Admissions:

  • Wisconsin
  • Minnesota
  • Arizona
  • U.S. District Court, District of Minnesota
  • U.S. Tax Court


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