O'Flaherty, Heim, & Curtis Ltd.

Sean O’Flaherty

Professional Experience

Sean O’Flaherty joined O’Flaherty, Heim, & Curtis, Ltd. in 2001 and became a shareholder in 2005.  He is now the sole member of O’Flaherty Law, LLC which started practice in July of 2020.  Sean represents many local and regional businesses and actively advises them regarding corporate structure, corporate governance, managing credit, mergers and acquisitions and succession planning. Sean represents several highly regarded financial institutions. Sean has served as City Attorney of the City of Onalaska since 2004. Sean regularly drafts and reviews complex banking, development, computer technology, and biotechnology contracts for local companies. Sean is licensed to practice law in the State of Wisconsin. He is a member of the American Bar Association, the State Bar of Wisconsin and the La Crosse County Bar Association. Prior to returning to La Crosse, Sean was employed by the law firm of Windels Marx Lane and Mittendorf, LLP in New York City where he concentrated on real estate financing.

Professional Associations

  • Member, La Crosse County Bar Association
  • Member, State Bar of Wisconsin
  • Member, American Bar Association
  • Member, State Bar of Wisconsin Real Estate, Probate and Trusts Section

Civic Involvement

  • Member, Downtown Rotary Club of La Crosse 2007 – 2011
  • President, Tri-Quest Charities, Inc. 2009 – 2011
  • Board Member, Tri-Quest Charities, Inc., 2002 – 2011, 2014 – 2017
  • Board Member, La Crosse Area Chamber of Commerce 2009 – 2011
  • Board Member, La Crosse Community Theatre, 2009 – 2011
  • Vice Chair, Chileda Foundation, Inc. 2007 – 2011
  • Board Member, Chileda Foundation, Inc. 2005 – 2011
  • Board Member, Aquinas Foundation, 2008 – 2018
  • Parish Council, Newman Center Parish 2014 – Present
  • Board Member, La Crosse Children’s Museum 2014 – Present
  • President, La Crosse Children’s Museum 2018- Present
  • City of Onalaska City Attorney 2004 – Present
  • Board Member, Coulee Region United Soccer Association 2012 – Present

Focus of Practice

  • Corporate Law
  • Business Law
  • Banking Law
  • Real Estate
  • Intellectual Property (trademark and copyright filings and disputes, patent disputes)
  • Municipal Law
  • Debtor/Creditor Issues
  • Civil Litigation
  • Estate Planning
  • Business Succession Planning

Court/Bar Admissions

  • Wisconsin, 2001


  • J.D. Fordham University School of Law, 1998
  • Sonia Shankman Orthogenic School, University of Chicago, 1991-1995
  • A.B., University of Chicago, 1991
  • United States Naval Academy, 1986-1988


Sean O'Flaherty