Kathryn "Katie" Rimpfel

Matt Reilly is a partner in the Washington, D.C., office of Kirkland & Ellis LLP. Matt’s practice focuses on a wide range of antitrust matters, including antitrust litigation, complex transactions and antitrust counseling and government investigations. Matt is frequently relied upon to obtain regulatory clearance for many of the toughest, high profile deals. Matt is a former assistant director of the Federal Trade Commission (FTC), Bureau of Competition. In this role, he served for ...

Kendal handles domestic and cross-border transactions, including mergers and acquisitions, joint ventures and strategic alliances, as well as licensing, distribution and franchise matters. What do you focus on? Franchising With over 25 years of experience, I counsel companies expanding through master franchising, area development franchising, international franchising, management contracts, joint venture agreements, licensing agreements and product distribution arrangements throughout the wor...

Joel R. Grosberg is co-head of McDermott’s Antitrust Mergers Focus Group and assists clients on civil and criminal antitrust matters, including obtaining merger clearances, counseling and litigation. He has represented clients in obtaining antitrust approvals in numerous challenging transactions, and in other government antitrust investigations before the Department of Justice, the Federal Trade Commission (“FTC”) and foreign competition authorities. Joel has significant exp...

Margaret Marks is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Trusts and Estates. Margaret, who practices law in Arlington, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Drake is a principal in the firm’s Plan Sponsor group. Her practice covers Employee Retirement Income Security Act (“ERISA”) and tax requirements applicable to retirement plans and non-qualified arrangements, health and welfare benefits and fringe benefit programs. In recent years, Elizabeth’s practice has focused on counseling and advocacy work on behalf of large plan sponsors on complex and sensitive matters primarily involving their defined benefit pension...

Donald R. McMinn litigates a variety of complex civil matters. He has considerable experience defending clients involved in MDL proceedings, from the petition for MDL status through the trial or settlement of “bellwether” plaintiffs. He leads both Firm attorney teams and local counsel teams in implementing a unified and consistent strategy across multiple jurisdictions in which simultaneous litigation is proceeding. He conducts depositions, develops expert testimony concerning cau...

David Ault is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. David, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Sam Spiritos’ clients recognize him as a sophisticated transactional attorney, trusted business advisor and an effective negotiator who truly understands their business needs. Over the course of his thirty-plus year career of successful deal-making, Sam has developed not only a masterful legal ability, but also strong relationships with many key players in the real estate markets in DC, Maryland, Northern Virginia and throughout the country. He draws upon this experience (which includes...

Benjamin Griffitts is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice. Benjamin, who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Benjamin is held by other top lawyers in the same geographic and legal practice area.

Rick Fischer’s practice focuses on retail financial services, privacy, and data security. For over 40 years, he has advised banks, retailers, insurers, technology and other companies throughout the United States on the full range of financial services and payment system issues. His practice has a special emphasis on privacy, data security, e-commerce, technology, and financial services joint ventures, as well as compliance and enforcement matters involving the Consumer Financial Protect...