Sean Mullen


Sean Mullen

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With more than 30 years of public accounting service, Sean is a principal and shareholder of Hancock & Dana.
He provides tax and management/financial consulting including tax consultation and planning, transaction structuring/consulting, valuation issues/litigation support, estate/family wealth planning and general business/financial planning.
In addition, he has been engaged in numerous litigation issues and has testified as the designated expert involving a broad range of business disputes.


  • Creighton University, BS in Business Administration
  • Creighton University School of Law, JD

Professional Memberships

  • American Bar Association
  • Nebraska Bar Association
  • Iowa Bar Association
  • U.S. Tax Court

Community Stewardship

  • Board Member, Creighton Preparatory High School
  • Board Member, Catholic Charities