She also advises widely on matters including state immunity, English litigation and arbitration procedure and legal privilege, as well as on how clients can best manage their litigation risk.

Karen was part of the firm's core Brexit, Covid, and Russia/Ukraine crisis teams and has been heavily involved in advising clients on the legal implications of these events. She also regularly trains clients and lawyers around the A&O Shearman global network on issues arising in the disputes context, including recent legal developments and trends.