Steven Ostner

Debevoise & Plimpton LLP 

Steven Ostner is a retired partner and a member of the firm’s Financial Institutions, Securities, Mergers & Acquisitions and Finance Groups. Mr. Ostner is the author of “Spinoffs Discover New Life, Energized Shareholders Seek Enhanced Value,” New York Law Journal (October, 1993). He is a member of the Association of the Bar of the City of New York and the American Bar Association.

Mr. Ostner is a contributing author of The Private Equity Primer: The Best of the Debevoise & Plimpton Private Equity Report and the Debevoise & Plimpton Private Equity Report. Mr. Ostner joined Debevoise in 1978 and became a partner in 1987. He received his B.A. from Amherst College in 1974 and his J.D. from Yale Law School in 1978.


  • Strongwood Insurance Holdings in its sale of Sequoia Insurance Company, Personal Express Insurance Company, Sequoia Indemnity Company and certain other subsidiaries to Amtrust Financial Services.
  • Protective Life Insurance Company and its wholly owned captive reinsurer, Golden Gate IV Vermont Captive Insurance Company, in a $790 million letter of credit-based financing of XXX reserves.
  • Syncora Holdings and its subsidiary, Syncora Guarantee, in the subsidiary’s comprehensive $6 billion restructuring relating to its transactions with various financial institutions that were counterparties to its credit default swaps and holders of residential mortgage-backed securities that it guaranteed.
  • Syncora Guarantee in the complex restructuring of financial guaranty policies related to approximately $500 million of Jefferson County, Alabama, Sewer Revenue Refunding Warrants.
  • A group of institutional investors holding Ambac-wrapped residential mortgage-backed securities allocated to the segregated account of Ambac in the rehabilitation of the segregated account.
  • Security Capital Assurance in its restructuring with XL Capital and various financial institutions party to credit default swaps with its insurance subsidiary XL Capital Assurance.
  • MBIA in a $1 billion investment by Warburg Pincus.
  • Senior Health Care Oversight Trust in the transfer to the Trust of Senior Health Insurance Company of Pennsylvania, formerly known as Conseco Senior Health Insurance Company, from Conseco.
  • Protective Life Corporation in a structured financing of excess “XXX” reserves of its life insurance subsidiaries.


  • Yale Law School, 1978, J.D.
  • Amherst College, 1974, B.A.

Bar Admissions:

  • New York


Rate : $$$

What types of cases Attorney Steven Ostner & Debevoise & Plimpton LLP  can handle?
Debevoise & Plimpton LLP  can handle cases related to laws concerning Financial Services, Corporate, Insurance, Mergers & Acquisitions. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Debevoise & Plimpton LLP  located?
Debevoise & Plimpton LLP  is located at 919 Third Avenue, New York, NY 10022, USA. You can reach out to Debevoise & Plimpton LLP  using their phone line 212 909 6619. You can also check their website or email them at [email protected].
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Debevoise & Plimpton LLP 
919 Third Avenue, New York, NY 10022, USA
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