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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Megan A. Senatori

Shari Dahms-Sande

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Megan is a shareholder located in the Firm’s Madison office. In January 2015, she was named the Chair of the Firm’s Litigation Practice Group. Megan handles a wide variety of litigation matters, focusing on complex commercial and business disputes, insurance coverage matters on behalf of policyholders, construction litigation, as well as ethics and discipline matters for attorneys and other professionals. Megan has experience in both state and federal court. She has handled and tried cases before judges, juries, arbitrators, and administrative bodies. She is also a skilled appellate advocate and has argued cases before the Wisconsin Supreme Court and the United States Court of Appeals for the Seventh Circuit.


Given her diverse practice, Megan serves an array of different clients. She is adept at handling matters not only for small and large businesses, but also for individuals who have never been involved in litigation. Clients describe Megan as an aggressive advocate, who is also approachable, attentive, and conscientious.

Notable representations

Megan has recently successfully represented clients in the following types of matters:

  • Establishing insurance coverage on behalf of a Wisconsin paper company against excess carriers for alleged environmental liabilities in excess of $100 million after a five-week jury trial in state court and successfully defending the jury’s verdict on appeal.
  • Obtaining a summary judgment decision in a CERCLA enforcement action in federal court that a company named by the Government in a Unilateral Administrative Order was not liable under CERCLA.
  • Successfully defending a general contractor from a $2.2 million damage claim relating to a mercury spill during a renovation project at a municipal water pollution control plant.
  • Establishing, after a six-week arbitration hearing, a constructive termination for convenience and obtaining a judgment in excess of $6 million on behalf of the general contractor in a construction dispute.
  • Establishing, in an appeal that went to the Wisconsin Supreme Court, that a homeowner’s insurer had breached its duty to defend and indemnify its policyholder after the insurer abandoned its policyholder when he was sued by his neighbors for allegedly violating a restrictive covenant.
  • Obtaining dismissal of a breach of contract case brought against a business after a terminated manager claimed he had been promised an ownership interest (valued by the plaintiff at approximately $400,000) in the business.
  • Obtaining a $1.85 million jury verdict after a two week jury trial in a civil rights case brought in federal court on behalf of the minor children of an unarmed man who was shot and killed by a City of Milwaukee Police Officer.
  • Obtaining reversal of a federal district court decision that her client, a mining company, had violated the Clean Water Act (CWA) – successfully arguing an appeal to the Seventh Circuit that the permit shield applied and her client did not violate the CWA.

In addition to her law practice, Megan is also committed to helping those in need. In 2001, Megan co-founded the Sheltering Animals of Abuse Victims® (“SAAV®”), a 501(c)(3) all volunteer organization that assists domestic abuse victims in Dane County, Wisconsin, by providing confidential, emergency, temporary shelter for their animals while the victim seeks safety from an abuser. SAAV’s outreach and education regarding the link between domestic violence and animal abuse reaches nationwide. Megan oversees the operations of SAAV and serves as president. In 2010, Megan was featured in O Magazine, and in 2014 in Brava Magazine for her work on behalf of SAAV. In 2015 Megan was awarded the Jack DeWitt Pro Bono Award.

Articles & Presentations

  • "Wisconsin Law, Chapter 173 and Chapter 951," Presenter for the Annual Wisconsin Humane Officer Certification Program by the Department of Agriculture, Trade & Consumer Protection (Fall 2006-Present)
  • "Recordkeeping & Informed Consent: Law and Best Practices," Presenter for the University of Wisconsin School of Veterinary Medicine, Practice Skills Class (Spring 2005-Present)
  • "The Power & Control Dynamics of Domestic Violence: How You Can Stop The Cycle of Abuse," Co-Presenter with Meg Sohns of Domestic Abuse Intervention Services, for the Wisconsin Veterinary Medical Association "Whats You Piece in Animal Welfare" Seminar (March 2017) 
  • "So You Got A Reservation Of Rights Letter, Now What?  A Policyholder's Perspective" Co-Presenter with Deborah Meiners for the Wisconsin Association of Corporate Counsel (May 2016) 
  • "Are You Being Paid For Your Testimony Today? Is It Ethical To Provide Compensation To A Fact Witness?" Presenter for the DeWitt Ross & Stevens Annual Ethics Seminar (Fall 2014) 
  • "The Basics of Commercial General Liability Insurance Coverage and Additional Insured Status on Construction Projects," ​Co-Presenter with Deborah Meiners for the 2014 State Bar of Wisconsin Annual Meeting & Conference (June 2014)
  • "Why Animal Cruelty Prosecutions Matter" Presenter for the Department of Agriculture, Trade & Consumer Protection "Animal Neglect & Cruelty: Navigating The Maze" Seminar (February 2014) 
  • "My Associate Made Me Do It: Duties of Supervisory Lawyers," Presenter for the DeWitt Ross & Stevens Annual Fall Ethics Seminar (Fall 2013)
  • "Autofill & Other Disasters: The Ethics of Inadvertent Email Disclosures," Presenter for the DeWitt Ross & Stevens Annual Fall Ethics Seminar (Fall 2011)
  • "The Ethics of Limited Scop Representation," Presenter for the DeWitt Ross & Stevens Annual Fall Ethics Seminar (Fall 2010)
  • "Reporting Lawyer Misconduct Pursuant To SCR 20:8.3," Presenter for the DeWitt Ross & Stevens Annual Fall Ethics Seminar (Fall 2008)
  • Contributor with Howard Schoenfeld to the Police Misconduct Litigation Packet of the American Association for Justice (formerly the Association of Trial Lawyers of America - ATLA) 

Our Locations


Two 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 Ross & Stevens S.C., including its affiliate DeWitt Mackall Crounse & Moore S.C., is one of the ten largest law firms based in Wisconsin, with an additional presence in Minnesota. It has nearly140 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.


Best Lawyers 2013 – 2018
Compass Award 2012
Top 100 Lawyers: National Trial Lawyers Association

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