
Debevoise & Plimpton LLP‘s group of insurer advocates specializes in securities class actions in the insurance industry primarily in the life and annuities, P&C, financial guaranty, and health insurance matters. In the New York office, practice head Maeve O’Connor is entrusted by a broad base of major US insurers to handle various complex securities disputes, and Susan Reagan Gittes is equipped to advise on regulatory and contentious matters including D&O disputes, securities litigation, and disputes stemming from transactions and M&A within the insurance sector.
Legal 500 Editorial commentary
- Profile
Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
- Responsive experts with strong industry knowledge. In short, they are a go-to firm with a deep bench.’
‘Eric Dinallo is an industry titan - he knows everyone and can get things done quickly.’
Key clients
- AIG
- AXA
- EmblemHealth and subsidiary Group Health Incorporated
- Guardian Life Insurance Company
- James River Group Holdings
- John Hancock
- Massachusetts Mutual
- MetLife, Inc.
- New York Life Insurance Company
- Prudential Financial, Inc.
Work highlights
Represented James River in obtaining a Preliminary Injunction in which a court awarded specific performance and required the buyer to close on the acquisition of a James River subsidiary under the terms of the purchase agreement.
Represented Prudential and its CEO, CFO and Vice Chair in connection with a securities class action lawsuit and related matters arising from a charge to reserves taken in 2019 following the Company’s annual review of its actuarial assumptions underlying its life insurance reserves.
Represented EmblemHealth and its subsidiary Group Health Incorporated in a putative class action lawsuit.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Maeve O’Connor
Other key lawyers
Susan Reagan Gittes; Eric Dinallo