Sean D. Wissman

Sean D. Wissman

Partner
Washington, DC, United States
+1 202 383 0832

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Sean represents clients on a wide variety of corporate and transactional matters. 

Much of Sean’s practice focuses on the insurance and financial services industries, areas in which he represents clients on mergers and acquisition, reinsurance, and other matters.

Prior to joining the Washington D.C. office, Sean gained broad-based transactional experience in New York as an associate at a large, international law firm and a midsized firm.

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  • Represented Swiss Reinsurance in managed buy out sale of AccuQuote, Inc.
  • Represented Talcott Resolution in its reinsurance of a $7 billion variable annuity block from Guardian Life with transfer of administration and in its flow reinsurance of Lincoln National's variable annuity business.
  • Represented Arch Insurance Group Inc. in its acquisition of a provider of travel insurance program administration/producer services.
  • Represented AFLAC in reinsurance transactions with various counterparties.
  • Advised Symetra Financial Corporation on the sale of its wholly owned subsidiary, Medical Risk Managers, Inc., a managing general underwriter and health care consulting firm, to BCS Financial Corporation.
  • Represented Munich American Reassurance Company and Munich Re New Ventures in establishing Parachute Digital Solutions, an end-to-end insurance platform for digital marketing and sale of insurance products throughout the US.
  • Represented Arch Capital on its acquisition of Ventus Risk Management, Inc., a commercial property managing general underwriter, pursuant to a stock sale.
  • Represented National Western Life Insurance Company on its acquisition of Ozark National Life Insurance Company and Ozark’s affiliated broker-dealer, NI.S. Financial Services, Inc. for approximately $205 million.
  • Represented MassMutual in its long-term care reinsurance transaction with RGA
  • Represented Advisor Group in its acquisition of Ladenburg Thalmann Financial Services Inc., a transaction with a total enterprise value of approximately $1.3 billion.
  • Advised Ohio National Life Insurance Company and its board of directors on a comprehensive strategic review and resulting publicly-announced repositioning plan involving the company’s US life and annuity businesses and international operations.
  • Represented an international property casualty insurer in its strategic equity investment in and related documentation for a peer-to-peer car sharing marketplace in the United States and elsewhere.
  • Represented an international property casualty insurer in its strategic equity investment and related documentation in a telematics insurer
  • Represented Allianz Life in its reinsurance with Talcott Resolution, Hannover, Munich Re and RGA of new or inforce annuity business.
  • Represented Brighthouse Financial and National Life in their various reinsurance transactions involving inforce business or newly issued annuity business.
  • Represented RGA in its acquisition of an in force annuity block from a mutual company, with approximately $1.2 billion in statutory reserves transfer.
  • Represented Allianz SE on a strategic joint venture in Bermuda with Enstar and Hillhouse Capital Management, involving a total capital commitment of $550 million, with follow-on restructuring and changes in ownerships.
  • Represented Voya Financial in its sale through novation of an existing Ballantyne Re block to Swiss Re.
  • Represented Aflac in a product development and reinsurance transaction with Reinsurance Group of America (RGA).
  • Represented Aflac in a product development and reinsurance transaction with DRMS New York (SunLife).
  • Represented Allstate Insurance Company in the acquisition of PlumChoice, Inc.
  • Represented Willis Towers Watson in the acquisition of its usage-based insurance (UBI) assets by Octo Telematics, the leading global provider of telematics for the auto insurance industry.
  • Represented Willis Towers Watson, a global risk management, insurance brokerage and advisory company, in the sale of a portion of its program businesses to AmWINS.
  • Represented Nationwide Mutual Insurance Company on its acquisition of Jefferson National Financial Corporation and its subsidiaries
  • Recognized by Chambers USA: Guide to Leading Business Lawyers in the area of insurance (2025)
  • Recognized by The Legal 500 United States in the area of insurance: non-contentious (2022, 2025)
  • District of Columbia
  • New York
  • A.B., cum laude, Harvard College
  • J.D., University of Michigan Law School

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Sean Wissman

Partner

+1 202 383 0832
Sean Wissman

Partner

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