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Sweet & Maier, S.C. Attorneys at Law
Serving Clients From Southeastern Wisconsin To Northeastern Illinois

Patrick S. DeMoon III

Patrick S. DeMoon III

Elkhorn, Wisconsin

Attorney Patrick S. DeMoon III began his legal career in 1997 when he accepted an appointment as an Assistant Attorney General in the Illinois Office of the Attorney General.  For the next five years, Attorney DeMoon represented the state and its elected officials as the lead attorney on a number of high-profile cases, several of which were featured on television and the front pages of Chicago area newspapers.  He then served for two years as the Senior Regulatory Attorney for the Chicago Stock Exchange, helping to protect the integrity of the national securities markets.  In 2004 Attorney DeMoon moved to his family's historic farm in Wisconsin and began practicing law in Walworth County.  He now represents clients on a variety of corporate and real estate related matters.

Attorney DeMoon earned his B.A. from Northwestern University and his J.D. from DePaul University's College of Law.  He is licensed to practice law in the federal and state courts of both Illinois and Wisconsin.


Litigation Percentage

  • 5% of Practice Devoted to Litigation

Bar Admissions

  • Illinois, 1996
  • U.S. District Court Northern District of Illinois
  • U.S. District Court Eastern District of Wisconsin
  • Wisconsin, 2006


  • DePaul University College of Law, Chicago, Illinois - 1996
  • Northwestern University, Evanston, Illinois
    • B.A., Bachelor of Arts - June, 1992

Professional Associations and Memberships

  • State Bar of Wisconsin, Member
  • State Bar of Illinois, Member

Past Employment Positions

  • State of Illinois, Assistant Attorney General
  • Chicago Stock Exchange, Inc., Senior Regulatory Attorney

Pro Bono Activities

  • Board, Twin Lakes Chamber of Commerce
  • Board, The Kara Foundation
  • Board, Geneva National Foundation


  • English


Sweet & Maier, S.C.
114 North Church Street
Elkhorn, WI 53121

Phone: 262-723-5480
Fax: 262-723-2180
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