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Stephanie A. Mattoon represents nonprofit and for-profit organizations at all stages of their life cycle with respect to corporate transactions and governance matters.  She regularly counsels new nonprofit organizations in obtaining tax-exempt status and advises existing tax exempt organizations regarding compliance with federal tax laws, including private benefit issues, unrelated business income tax, fiscal sponsorship arrangements, public charity support determinations, restrictions on lobbying and political activity, and affiliation between 501(c)(3) and 501(c)(4) organizations.  She has extensive experience representing private foundations on compliance matters related to self-dealing, program-related investments, expenditure responsibility, scholarship programs, and non-lobbying advocacy.  She is frequently invited to speak to board of directors and executives on issues of corporate governance and nonprofit compliance.  

Stephanie received her Juris Doctor, with high distinction, from the University of Nebraska College of Law in 2005, where she was inducted into the Order of the Coif and the Order of the Barristers. While in law school, she was a member of the Nebraska Law Review and the National Moot Court Team and was awarded the CALI Excellence for the Future Awards in Corporations, Employee Benefits Laws, Pretrial Litigation, Torts and Trial Advocacy. Stephanie received a BBA in Marketing, magna cum laude, from Texas Christian University in 2002.

Stephanie is a 2013 TOYO Award recipient (Ten Outstanding Young Omahans), an award honoring 10 Omahans between the ages of 21 and 40 who demonstrate a commitment to community service and personal and professional development.


  • University of Nebraska College of Law, J.D., with high distinction, 2005
  • Texas Christian University, BBA in Marketing, magna cum laude, 2002

Professional & Civic Affiliations

  • Nebraska Sports Council, Board of Directors (2014-present), Secretary/Treasurer (2017-present)
  • UNL College of Law Entrepreneurship Clinic, Advisory Board (2013-2019)
  • Lane Thomas Foundation, Board of Directors (2016-2020)
  • Joslyn Castle Trust, Board of Directors (2008-2014), President (2010-2012)
  • Kids Can Community Center, Board of Directors (2011-2017)
  • Leadership Omaha Class 35 (2012-2013)
  • Nebraska State Bar Association, Leadership Academy (2010-2011)

Bar & Court Admissions

  • Iowa, 2005
  • Nebraska, 2006

Selected Recent Publications

  • “Mergers and Acquisitions Between Nonprofit Organizations,” The Nebraska Lawyer, Sept/Oct 2018
  • “501(c)(3) Organizations: Political Activity and Lobbying,” The Nebraska Lawyer, Sept/Oct 2015

Recent Speaking Engagements

  • “Lawyers as Board Members: Legal, Ethical, and Practical Considerations”, Nebraska Bar Association Leadership Academy, November 2022
  • “Lobbying and Political Activity by Nonprofit Organizations”, Nebraska Bar Association Nonprofit Seminar, 2022
  • “Organizational Development for Sustainable Trail Support” panelist, Iowa Trails Summit, 2022
  • “Winding Down: Legal and Financial Steps,” Nebraska Arts Council, 2021
  • “2019 Corporate Law Update,” 2019 Baird Holm Corporate In-House Counsel Forum
  •  “Teaming Up: Nonprofit Mergers, Acquisitions, and Joint Ventures,” Nebraska State Bar Association Nonprofit Seminar, 2018
  • “Board Governance: Best and Worst Practices,” Nebraska Bar Association Nonprofit Seminar, 2017
  • “Nonprofit Legal Compliance: Common Myths, Misconceptions, and Mistakes (and How to Correct Them),” Nonprofit Association of the Midlands, 2016
  • “Double Take: Perspectives from Corporate Lawyers and Litigators on Key Contract Provisions,” Association of Corporate Counsel, 2017
  • “Benefit Corporations: Beyond the Bottom Line,” Omaha Network, 2016
  • “Business Formation 101: Helping Your Client Organize and Protect their New Business,” Nebraska State Bar Association Young Lawyer Seminar, 2016

1700 Farnam Street | Suite 1500 | Omaha, NE 68102 | 402.344.0500