Mishcon de Reya, the London-based law firm known for high-profile clients, has lost four partners to US rival Seyfarth Shaw, marking a significant raid on its ranks. The departures include real estate partner Richard Miskella, corporate partners Jonathan Deverill and James Klein, and litigation partner Simon Hart, according to a statement from Seyfarth Shaw.
Details of the Departures
The four partners will join Seyfarth Shaw's London office, strengthening its capabilities in real estate, corporate, and litigation practices. Richard Miskella, who led Mishcon's real estate team, brings expertise in development and investment work. Jonathan Deverill and James Klein specialize in corporate transactions, while Simon Hart focuses on commercial litigation and arbitration.
Miskella said in a statement: "Seyfarth Shaw's global platform and commitment to client service align with my own values. I look forward to building on our existing relationships and expanding the firm's presence in London." Deverill added: "The opportunity to join a growing US firm with a strong reputation was compelling."
Impact on Mishcon de Reya
The departures represent a loss of senior talent for Mishcon de Reya, which has around 200 partners and 1,000 lawyers globally. The firm has been expanding its own US presence, opening a New York office in 2021. A Mishcon de Reya spokesperson said: "We wish them well in their future endeavors. We have a strong team and remain focused on delivering for our clients."
Mishcon de Reya has recently faced other partner moves, including the departure of litigation partner Mark Humphries to US firm Quinn Emanuel in 2023. The firm's revenue for the 2022/23 financial year was £335 million, up 11% from the previous year.
Seyfarth Shaw's London Expansion
Seyfarth Shaw, headquartered in Chicago, has been expanding its London office, which now has over 30 lawyers. The firm focuses on labor and employment, litigation, and corporate law. The addition of the four Mishcon partners boosts its real estate and corporate practices in the UK market.
Andrew Barkan, managing partner of Seyfarth Shaw's London office, said: "These partners bring deep experience and strong client relationships that will enhance our ability to serve clients in the UK and globally."
Broader Context
The moves reflect ongoing competition for talent among law firms, particularly as US firms seek to grow their London presence. According to a 2023 report by legal consultancy firm MergerMarket, US law firms in London have increased partner headcount by 15% over the past two years, while UK firms have seen a 5% decline. The trend is driven by cross-border work and the attractiveness of London as a global legal hub.
Mishcon de Reya has been active in high-profile matters, including representing clients in the Post Office Horizon scandal inquiry and advising on major real estate deals. The firm's partnership structure allows partners to hold equity, but US firms often offer higher compensation packages, which can lure talent.



