Yvette Ostolaza

Sidley Austin - Texas


2021 McKinney Avenue, Suite 2000
Dallas, Texas 75201

+1 214 981 3401

Litigation Star

National Practice Area Star

Practice area:

Labor and employment

Yvette Ostolaza is chair-elect of Sidley’s Management Committee. She is also a member of the firm’s Executive Committee, the managing partner of the Dallas office, and global co-leader of the Litigation practice. Yvette is one of the world’s foremost business litigators, delivering winning results for clients at each stage of complex multi-jurisdictional commercial disputes and corporate investigations. Yvette’s litigation work and ability to solve her clients’ most difficult litigation problems has garnered her numerous accolades and recognitions, including 2021 Band 1 Chambers USA recognition and Benchmark Litigation 2021 National Commercial Litigation Star.

Yvette is admitted in New York and Texas and litigates trial and appellate matters in U.S. state and federal courts on behalf of global clients. She has significant experience in MDL, activist defense, bankruptcy, arbitration, and securities litigation cases. She coordinates and tries proceedings in a variety of arbitration venues, serves on the Roster of Neutral Arbitrators for the AAA for commercial litigation matters, and on the CPR Panel of Distinguished Neutrals as an arbitrator for the International Institute for Conflict Prevention & Resolution. She has served as Vice Chair, Ethics and Investigations Subcommittee of the ABA Corporate Governance Committee. 

Yvette is highly experienced in providing on-point guidance to boards and senior level executives during periods of corporate turbulence. In 2021, Chambers USA recognized Yvette as a leader of the firm’s Band 1 Crisis Management practice and she is one of a very small number of notable practitioners in the area of crisis management listed specifically. She routinely leads complex internal investigations on behalf of companies, board committees, and individual directors and defends companies/directors in shareholder and securities class actions. Yvette currently serves on the board of directors of Lionsgate and has previously served on several nonprofit boards, as well as on the Board of the State Bar of Texas. 

Yvette’s practice range, experience, and results have earned her extensive recognition. In 2021, Chambers USA ranked her Band 1 in Litigation with one client describing her as “a tremendous asset to have on your side and a natural leader who has the ability to manage all the moving parts of a team.” From 2009–20, Yvette was annually among the highest ranked lawyers in General Commercial Litigation by Chambers USA. For example, in 2020, Chambers USA noted that clients call her “a force of nature” with “every arrow in her quiver that you would want,” who “doesn’t look for the usual cookie-cutter, classic legal responses,” who has particular “expertise in whistleblower and investigation matters,” and is “so dynamic, her command of a room and her ability to get what she needs for a client is unmatched.” 


Updated Sep 2021