Tristan Evans-Wilent is counsel in Ropes & Gray's New York office. Tristan has a broad-based tax practice, with an emphasis on advising private equity sponsors and their portfolio companies and other private companies in connection with the tax consequences arising from a variety of transactions, including acquisitions, leveraged buyouts, dispositions, going private transactions and minority investments, both domestic and cross-border.


  • Represented TPG Capital and Francisco Partners in their acquisition of Boomi from Dell Technologies. 
  • Represented TPG Capital in its investment in DirecTV with AT&T Inc.
  • Represented American Industrial Partners in its acquisition of Domtar Corporation’s Personal Care business for $920 million.
  • Represented Asklepios BioPharmaceutical on its pending sale to Bayer AG for upfront consideration of $2 billion and potential success-based milestone payments of up to $2 billion.
  • Represented Gilead Sciences Inc. in its acquisition of an option to acquire Tizona Therapeutics in a deal valued up to $1.5 billion and its acquisition of an option to acquire Pionyr Immunotherapeutics in a transactions valued up to $1.74 billion.
  • Represented Summit Partners and Silversmith Capital Partners in the $1.2 billion sale of LifeStance Health to TPG Capital.

Prior to joining Ropes & Gray, Tristan represented clients in several noteworthy transactions, including:

  • AssuredPartners and Apax in the sale of AssuredPartners to an investor group led by GTCR.
  • Apax Funds in their acquisition of Thoughtworks, Inc.
  • Baring Private Equity Asia in its investment in Prometric.
  • Starr Investment Holdings, LLC on its investment in Radiology Partners, the largest radiology practice in the U.S., for approximately $700 million.
  • Altas Partners in the pending sale of Capital Vision Services, LP (operating under the “MyEyeDr Brand”) to the Merchant Banking Division of Goldman Sachs.
  • Colfax Corporation on its sale of its Air and Gas Handling Business to KPS Capital Partners for $1.8 billion.
  • TA Associates in its sale of a majority interest in Aldevron to EQT Partners.
  • Wyndham Worldwide in its $1.95 billion acquisition of La Quinta Inns & Suites’ franchise and management businesses.

Areas of Practice