Daniel S. Mayerfeld

• Represented Swiss subsidiary of a French bank in federal litigation arising out of a multi-billion-dollar Ponzi scheme. Worked closely with client’s employees in foreign and domestic offices. Advised bank regarding parallel litigation in Switzerland. Responsible for international discovery efforts, including overseas depositions. Coordinated joint defense group involving multiple international and regional law firms. Led expert analyses.
• Represented major pharmaceutical manufacturer in all opioid-related cases in Texas. Negotiated with plaintiffs on behalf of a consortium of all manufacturer defendants. Coordinated strategies with co-defendants.
• Represented a refinery software company in a multimillion-dollar federal litigation involving misappropriation of trade secrets, copyright infringement, and covenants not to compete.
• Represented a major bank in its successful $69 million breach-of-contract case focusing on a “most favored nations” clause in a settlement agreement.
• Represented a plaintiff suing over breaches of representations and warranties made in a $630 million purchase of well-service companies.
• Represented an electric power, oil and gas, and telecommunications infrastructure company in a lawsuit involving alleged breaches of covenants not to compete concerning a $300 million sale of telecommunications companies.
• Represented a fertilizer manufacturer in mass tort litigation involving the explosion of a retail fertilizer facility near Waco, Texas.
• Represented a medical devices company in global Foreign Corrupt Practices Act investigations involving the Department of Justice, Securities and Exchange Commission, and foreign government anti-corruption agencies.
• Represented a hardware company in an internal investigation related to a loss of approximately $150 million; advised companies, directors, and bankers in shareholder class action suits challenging multimillion- and multibillion-dollar corporate mergers.
• Represented multiple entities in federal securities and breach of commercial contract cases; and advised clients on the risks involved in executing business strategies.

Daniel’s pro bono work has included:

• Securing the release of a man who spent 28 years in prison after being convicted wrongfully of arson and four counts of murder at the age of 16, based solely on a coerced confession.
• Representing a client seeking asylum who was persecuted in El Salvador due to his sexual orientation.
• Assisting a client seeking asylum who was facing forced marriage in Sudan and persecution due to religious beliefs.