Diego Sierra is Partner in our Dispute Resolution Practice. He heads our Anti-corruption and Bankruptcy and Restructuring practices and remains active in arbitration and complex commercial litigation. In2014-2016, Diego served as rapporteur for the IBA’s Judicial Integrity Initiative. Diego Sierra is incoming Chair of the ICC México Anti-corruption Committee.
Also, Diego Co-Chairs the Insolvency Committee of the Mexican Bar Association (2017 – 2021). Diego Sierra is admitted to practice in NY. Diego Sierra has conducted investigations in the consumer products, financial, insurance, media and entertainment industries, among many others. Diego Sierra has wide experience in handling international arbitration cases in the construction, hospitality, oil & gas and consumer product industries. Finally, Diego Sierra has ample experience in handling any type of civil liability case (negligence, breach of contract or tortious liability) , having litigated throughout Mexico both in commercial and civil liability cases as well as defending class action suits. Diego Sierra has also rendered expert witness opinions on Mexican law in courts outside of Mexico. He has been recognized by Chambers & Partners Global, Chambers & Partner Latin America, Global Arbitration Review 100 (GAR 100), Legal 500, Latin Lawyer 250 among others. GIR 100 and GRR 100 have, respectively, recognized VWyS’ Anticorruption and Restructuring practices as one of the top 100 investigations and restructuring practices worldwide.
Advises a group of European banks in the Oceanografía insolvency proceedings. European Banks’s credits have a value around USD $200 million.
Advises an important auto parts manufacturer regarding the possibility of filing for Bankruptcy for its subsidiary in Mexico, in the context of its already ongoing global restructuring process seated in U.S. Courts.
Advises BAC Florida Bank in the Proveedora La Perla Bankruptcy proceedings, as one of the most important creditor of La Perla. BAC Florida Bank’s credit has a value of several million dollars. USD millions.
Advised a risk-rating agency in an internal investigation, originated by whistle-blower allegations suggesting that employees received illegal payments in order to stop downgrading the debt rating of a state of the federation with the purpose of obtaining better access to financing.
Advises Anheuser-Busch InBev in preventing (anti-corruption due diligence) and reacting (investigations) measures in connection with the Foreign Corrupt Practices Act and the recently created, National Anti-Corruption System.
Advised a global association dedicated to protect intellectual property in an internal investigation regarding allegations of bribery and fraud to obtain unlawful settlement agreement on different proceedings with Mexican authorities.
Advised an insurer in an internal investigation related to fraud and misappropriation of assets. The findings helped the Company to strengthen internal controls and restructure its work teams.
Represented Corvaglia Holding AG in a shareholders dispute regarding the Mexican subsidiary Corvaglia Closures, S.A. de C.V. Corvaglia Holding AG successfully prevailed and secured control of its Mexican subsidiary.
Represents DF Deutsche Forfait AG, Investkredit Bank AG and Helaba Landesbank Hessen-Thüringen in several commercial proceedings against Oceanografía and Amado Yañez Osuna in Campeche, Ciudad del Carmen and Mexico City, with a value around USD $200 million.
Represented Acqua Minerale San Benedetto in a commercial arbitration against Peñafiel, where the Arbitral Tribunal issued an award declaring that Peñafiel had violated the JV and condemning it to pay for the damages produced for millions of dollars. USD millions.
Represents an important auto parts manufacturer in a class action initiated by a civil association, where the claimant demands a compensation for the damages related to the whole Mexican automotive market.
- American (US)
Education & Experience
Law Degree (J.D. equivalent), with honors, Escuela Libre de Derecho, Mexico City.
Diploma in International Arbitration, first in his class, Escuela Libre de Derecho, Mexico City.
Master of Laws Degree (LL.M.) and Certificate in Business Administration with honors, Northwestern University School of Law & Kellogg School of Management, Chicago.
Foreign attorney, Skadden, Arps, Slate, Meagher & Flom LLP, New York.
Admitted to practice in Mexico and New York.
Affiliations & Academic Activities
Vice President, Anticorruption Committee of the International Chamber of Commerce.
Co-Coordinator, Bankruptcy Law Commission of the Mexican Bar Association.
Head of the Legal Group of MeXXIco Libre de Corrupción.
Former rapporteur for the International Bar Association’s Judicial Integrity Initiative.
Member of the International Bar Association.
Chambers & Partners Global, Chambers & Partners Latin America, Legal 500, Global Investigations Review 100, Global Arbitration Review 100, Latin Lawyer 250, Who´s Who Legal and Best Lawyers among others.
Von Wobeser y Sierra´s Of Counsel, Guillermo Ortíz Mayagoitia, Retired Presiding Justice of Mexico and our Partner Diego Sierra participated in the International Bar Association´s Judicial Integrity Initiative in London
Spanish and English.