Karen L. Handorf is a Partner at Cohen Milstein and Chair of the firm’s Employee Benefits (ERISA) practice group. Ms. Handorf represents the interests of employees, retirees, plan participants and beneficiaries in ERISA cases in the district courts and on appeal. She joined the firm in 2007 following a distinguished career in government service litigating ERISA cases in federal and district courts. 

Ms. Handorf is involved in litigation and appeals involving a broad range of employee benefits issues. She currently leads a team of litigators in a series of lawsuits alleging that health care systems wrongfully claim their pension benefit plans are exempt from ERISA’s protection because they are church plans.  Ms. Handorf is also litigating issues involving the selection of proprietary funds by 401(k) plans sponsored by financial institutions and imprudent and non-diversified investments by defined benefit plans.  She also represents Oregon officials in a lawsuit alleging that a provision of the state’s OregonSaves retirement program for private-sector employees is preempted by ERISA.

Prior to joining Cohen Milstein, Ms. Handorf was an attorney for the U.S. Department of Labor (DOL), where she litigated ERISA cases in federal and district courts for 25 years. While at the DOL, she played a major role in formulating the Government’s position on ERISA issues expressed in amicus briefs filed by the Solicitor General in the United States Supreme Court.

Ms. Handorf is a recipient of the Department of Labor Distinguished Career Service Award and received Exceptional Achievement Awards for her work on ERISA 401(k) plan remedies, the amicus brief in the Enron litigation, retiree health care, the amicus program in general, the appellate brief in the Department’s Tower litigation, termination annuities litigation and multiple employer welfare arrangement (MEWAs) litigation.

Ms. Handorf has been recognized for her expertise by her colleagues in the ERISA bar, who named her a Fellow of the American College of Employee Benefits Counsel. She is a frequent speaker on ERISA issues for the ABA, various Bar associations and at private seminars. She serves as plaintiffs' co-chair of preemption subcommittee of the Employee Benefits Committee of the ABA's Labor Section. In 2016, 2017 and 2018, she was named to the Best Lawyers in America.

Ms. Handorf attended the University of Wisconsin-River Falls, where she received a B.S. in Speech and History, and earned her law degree from the University of Wisconsin Law School. 

  • Deputy Associate Solicitor, Plan Benefits Security Division, U.S. Department of Labor
  • Counsel, Decentralized & Special Litigation, U.S. Department of Labor
  • Trial Attorney, Plan Benefits Security Division, U.S. Department of Labor
  • Plaintiffs Co-Chair, Pre-emption Subcommittee, Employee Benefits Committee, ABA Labor Section