Yvette Ostolaza

Practice Areas

YVETTE OSTOLAZA is Sidley’s Management Committee Chair and an Executive Committee Member. Yvette is one of the world’s foremost business litigators, delivering winning results for clients at each stage of complex multijurisdictional commercial disputes and corporate investigations.

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, crisis management, 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 sits on the CPR Panel of Distinguished Neutrals as an arbitrator for the International Institute for Conflict Prevention & Resolution. She is fluent in Spanish and regularly advises clients in Latin America and Europe.

Yvette is highly experienced in providing on-point guidance to boards and senior-level executives during periods of corporate turbulence. She routinely leads complex internal investigations on behalf of companies, board committees and individual directors, and she defends companies/directors in shareholder and securities class actions. Yvette currently serves on the board of directors of Lionsgate Entertainment, Inc. and has served on several nonprofit boards, as well as the Board of Directors of the State Bar of Texas.