Groom Law Group, Chartered’s practices continue to be recognized as top tier, earning high marks by The Legal 500 United States in its ‘Employee Benefits, Executive Compensation, and Retirement Plans: Design’, ‘ERISA Litigation’, and ‘Healthcare: Health Insurers’ categories.

A number of Groom attorneys earned individual recognition in The Legal 500 for their work:

Excerpts from the guide are below:

Employee Benefits, Executive Compensation, and Retirement Plans – Design: Washington DC-based boutique firm Groom Law Group, Chartered is noted for its experience and capability across the full spectrum of employee benefits, executive compensation, health and retirement-related matters, assisting a range of plan sponsors, as well as financial institutions. Standout partner David Levine focuses on the redesign of retirement and executive plans, while Jon Breyfogle is recognized for his expertise in health and welfare mandates. Elsewhere, Jennifer Eller advises corporate and public plan sponsors on all aspects of ERISA fiduciary compliance, and Brigen Winters specializes in legislative policy issues, while Michael Kreps advises both private and public sector clients on retirement and health matters. Mark Lofgren handles tax-qualified retirement plan arrangements, while Christine Keller, advises employers, insurers, and service providers on health and welfare plan design and administration mandates. Tax specialist Louis Mazawey, Allison Ullman and Lisa Campbell are also key members of the team.

ERISA Litigation: Groom Law Group, Chartered’s work ranges from claims disputes and federal agency investigations to complex class action and multi-district litigation involving plan sponsors. Its Washington DC-based team is led by Lars Golumbic, who has notable experience in class actions, defending clients in Department of Labor investigations and enforcement matters. Michael Prame focuses on benefit plan fiduciaries, as well as other service providers and plan sponsors, and Mark Nielsen defends plan trustees and sponsors in federal court against claims surrounding prohibited transactions; in particular, he has successfully defended employers against claims arising under the Americans with Disabilities Act. Sarah Adams acted as lead partner on a successful eight-year case, representing the Supplemental Benefit Committee of the Navistar International Transport Corp.

Healthcare: Health Insurers: The Washington DC-based healthcare team at Groom Law Group, Chartered prioritizes expert regulatory advice, covering Medicare coverage rules, HIPAA privacy requirements, and insurer responsibilities under the Mental Health Parity act. The team has been heavily involved in telehealth-related work, advising a number of health plan sponsors on adding telehealth aspects to their offerings. It also offers transactional support, advice on federal investigations and anti-kickback cases, as well as growing advice related to the federal No Surprises Act. Jon Breyfogle and Lisa Campbell co-lead the team, both bringing with them prior leadership experience in federal bodies. Ryan Temme is also recommended for his work on government audits on requirements of the Mental Health Parity and Addiction Equity acts.


Specializing in all aspects of benefits, health and retirement law, Groom Law Group, Chartered was founded in the wake of a landmark regulatory development—the Employee Retirement Income Security Act of 1974. Today, with over 90 attorneys practicing in the field, Groom has the largest ERISA and benefits practice in the United States, solving complicated legal issues for a variety of clients in finance, retirement, health care, and the public sector. Informed by decades of experience, Groom’s widely-recognized litigation practice maneuvers the complex, dynamic landscape of employer, health, and pension-related litigation to successfully represent clients in federal and state courts, arbitrations, and government investigations across the country.

The Legal 500 is a research, ranking and publishing firm that analyzes the capabilities of law firms across the world. The Legal 500 assesses the strengths of law firms in over 150 jurisdictions, with rankings based on a series of criteria including research, interviews and feedback from trusted members within the legal community.