Mackall, Crounse & Moore, PLC has joined Dewitt Ross & Stevens S.C.

The newly formed DeWitt Mackall Crounse & Moore S.C. will provide clients with enhanced legal services
and efficiencies as well as access to more than 100 attorneys practicing in nearly 30 areas of
law in Wisconsin and Minnesota.

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Ronald B. Peterson

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Mary Jo Moriarty

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For decades, Ron has skillfully advised clients in the Business, Real Estate and Business Succession Planning areas. He works with clients on a variety of issues including matters with financial services, intellectual property, commercial real estate, and capital financing. Clients frequently seek Ron’s guidance in various business planning and financial transaction matters to include mergers and acquisitions, business organization issues, formation and reorganization, raising capital for entities and choice of entities.

He is skilled at working with complex business commercial transactions and succession planning for privately owned or controlled entities. His wealth of experience includes negotiating and drafting countless commercial contracts, business sales and complex commercial real estate transactions.

Ron’s extensive senior management experience, along with his legal acumen, includes strategic planning, corporate consultation, decision implementation and a solid record of success working with business entities to create innovative solutions to their legal and business needs.

In the area of Real Estate, Ron is certified as a Real Property Law Specialist by the Real Property Law Section of the Minnesota State Bar Association and has published numerous articles on the topics of real estate and business.


Ron represents clients in the private and public sector in all industries impacted by business, real estate and succession planning. In particular, he has worked with clients in the medical device, manufacturing, financial services, healthcare, retail and technology industries. Whether they seek intellectual property advice, financing or business succession planning guidance, he is able to walk his clients through the gauntlet of legal considerations.

Notable Representations

  • Represented a technology manufacturer in mergers, licensing and international distribution matters.

  • Guided a manufacturer through numerous acquisitions, mergers and financing transactions.

  • Assisted several medical device companies with start-up financing, mid-stage funding and other financial transactions.

  • Counseled a large health care company in the acquisition, construction and financing of its medical campus.

  • Advised a significant financial services company in transactions involving a special purpose capital financial services company and reinsurance matters.

  • Represented a major laboratory in an extensive reorganization to facilitate succession planning.

  • Navigated contracts and multiple acquisitions for a health food manufacturing company.

  • Worked with the Community Development Agency in Minneapolis on significant real estate projects to include the Saks Fifth Avenue building and the Sears Tower project in Minneapolis.

Our Locations

We are currently limiting the amount of outside visitors to the firm.  

Please work directly with your attorney who will coordinate any onsite visits to ensure the safety of our clients and colleagues.


2 East Mifflin Street, Suite 600
Madison, WI 53703
(608) 255-8891
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Greater Milwaukee

13845 Bishop’s Drive, Suite 300
Brookfield, WI 53005
(262) 754-2840
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2100 AT&T Tower,
901 Marquette Avenue
Minneapolis, MN 55402
(612) 305-1400
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Get to know us

DeWitt LLP is one of the ten largest law firms based in Wisconsin, with an additional presence in Minnesota. It has nearly 140 attorneys practicing in Madison, Metropolitan Milwaukee and Minneapolis in over 30 legal practice areas, and has the experience to service clients of all scopes and sizes.

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We are an active and proud member of Lexwork International, an association of mid-sized independent law firms in major cities located throughout the Americas, Europe and Asia and an active member of SCG Legal, an association of more than 140 independent law firms serving businesses in all 50 state capitals and major commercial centers around the world.


Best Lawyers 2013 – 2020
Super Lawyers 2020
Compass Award 2012
Top 100 Lawyers: National Trial Lawyers Association


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The best way for you to initiate a possible representation is to call DeWitt LLP at 608-255-8891. We will make every effort to put you in touch with a lawyer suited to handle your matter. When you receive an engagement letter from one of our lawyers, you will be our client and we may exchange information freely.

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