Diana Wollman

Cleary Gottlieb Steen & Hamilton LLP

$ $$$

Liberty Street 1
New York 10006 NY US

Diana L. Wollman’s practice focuses on complex international M&A and internal restructuring transactions, tax audits, tax investigations and strategic audit preparation.

Diana joined Cleary Gottlieb in 2015 after serving as the Internal Revenue Service’s first Director of International Strategy for the agency’s Large Business & International Division, where she was responsible for developing and managing its international strategic program. Her work included improving how the IRS identifies and addresses significant international tax issues, manages and utilizes its institutional knowledge and data, and trains agents; she also worked to improve the collaboration and coordination between the audit division and the Office of Chief Counsel.

She represented the IRS on several Organisation for Economic Co-operation and Development (OECD) working groups, including those focused on BEPS (the OECD’s base erosion and profit shifting project), the Forum on Harmful Tax Practices and the Forum on Tax Administration.

Prior to her 2013 appointment to the IRS, Diana was a partner in the tax practice of another major international law firm, where she began her career as an associate in 1993. There she built a diverse practice that included federal and New York State tax controversies, complex cross-border transactions, fund and private equity work, and bankruptcy.


  • Member, Executive Committee, New York State Bar Association’s Tax Section; Former Tax Section Chair (2013)
  • Fellow, American College of Tax Counsel
  • Member, The Tax Club (Harvard Club of New York)
  • Member, The Tax Review
  • Member, The Tax Forum
  • Former Adjunct Professor, Columbia Law School
  • Law Clerk to the Hon. Robert J. Kelleher of the U.S. District Court for the Central District of California, 1991-1992


  • University of California, Los Angeles School of Law, J.D., 1991


  • New York


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Liberty Street 1
New York 10006 NY US
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Lina Stillman

Broadway 42
New York 10006 NY US