Mary Cassidy practices in the employee benefits area. Her practice focuses on the tax aspects of employee benefit plans, including tax-qualified retirement plans (including defined benefit pension and 401(k) plans and employee share ownership plans (ESOP)), 403(b) plans, church plans, voluntary employees' beneficiary associations (VEBA), welfare plans,and nonqualified deferred compensation arrangements for tax-exempt organizations. She regularly advises clients on a broad range of employee benefits matters, including the design and implementation of tax-qualified retirement plans and 403(b) plans, benefit plan compliance with federal tax and Employee Retirement Income Security Act (ERISA) requirements, correction of benefit plan defects through Internal Revenue Service (IRS) and Department of Labor (DOL) self-correction programs, and nondiscrimination testing of church plans. She represents clients with respect to obtaining rulings and determination letters from the IRS, obtaining compliance statements from the IRS under its voluntary compliance program, and IRS and DOL audits of employee plans.


  • Two major printing companies in connection with 401(k) and pension plan issues, employer securities issues, and possible Pension Benefit Guaranty Corporation liability resulting from plant shutdowns.
  • Major business development company in connection with 401(k) plan, ESOP, and VEBA issues.
  • Major manufacturing company in connection with the multibillion dollar spin-off of several of its businesses.
  • Two large corporations in connection with the restructuring of their retirement plans, including the freezing of their defined benefit plans.
  • Several church and church-affiliated organizations in connection with 401(a), 403(b), and church plan issues.
  • A large church plan on nondiscrimination testing and controlled group issues.
  • Several national nonprofit organizations in connection with 403(b), 409A, and 457(f) arrangements.
  • Two national labor unions in connection with 409A and 457(f) arrangements.
  • Major food corporation in connection with ESOP issues.
  • A VEBA sponsored by several state-wide labor unions on the tax consequences of the activities of its for profit subsidiary.


  • JD, The George Washington University Law School, 1986
  • MS, State University of New York at Binghamton, 1980
  • BA, State University of New York at Binghamton, 1977
  • District of Columbia
  • New York

Email Disclaimer