Allison Warden Sizemore Photo

Allison is a Partner in the Global Corporate Group, who serves as Chair of the U.S. Employee Benefits and Executive Compensation Group, and assists clients with matters involving employee benefits and executive compensation. Among Allison’s areas of specialty expertise are the Department of Labor’s fiduciary rule, legal compliance for qualified retirement plans, complex controlled group and similar determinations, documentation and disclosure for qualified and nonqualified plans, executive compensation (including Code Sections 409A, 280G and 457), counseling regarding day-to-day benefits administration and compliance, health and welfare plan matters, and withdrawal liability and other multiemployer plan issues. Allison also regularly advises employers on ERISA fiduciary matters, including governance, potential liability, and best practices, and assists financial institutions with complex prohibited transaction, trust and custody, required disclosures, and “plan asset” matters. Allison also is experienced with benefits advice in connection with mergers, acquisitions, and lending transactions, including private equity and private fund transactions, as well as analyzing ERISA implications of fund structure and certain operations.


  • Duquesne University School of Law, 2009, J.D., summa cum laude, Senior Staff Member and Assistant Comment Editor, Duquesne Law Review; Member of 2008-09 National Appellate Tax Moot Court Team; Recipient of 2009 Pittsburgh Tax Club Award; CALI Award for Excellence in Taxation of Corporations & Partnerships
  • St. Bonaventure University, 2004, B.A., Political Science, summa cum laude, Outstanding Political Science Graduate, 2004

  • Pennsylvania

Awards & Recognition

  • Honored as one of the 2018 Lawyers on the Fast Track by the Legal Intelligencer