Warren Koshofer has spent his career at the intersection of law and business, advocating for clients in disputes where regulatory complexity and commercial risk collide. He counsels companies and individuals across the oil and gas, chemical, finance, real estate, luxury goods, and consumer products sectors.

Especially recognized for his work in environmental litigation, he handles matters involving Proposition 65, toxic torts, and environmental exposure. He also advises on mergers and acquisitions, delivering due diligence and risk assessments tied to environmental liabilities, insurance coverage, and indemnification. His work frequently touches on sustainability and ESG, particularly in the fashion and luxury goods industries.

He has represented clients in state, federal, and administrative courts across the country, litigating everything from contract and insurance disputes to intra-company conflicts and IP-related risks in commercial transactions. Many of his cases have helped shape how regulated businesses assess and respond to exposure.

With decades of litigation experience behind him, Warren brings a seasoned, measured perspective to each matter—helping clients stay focused, prepared, and in control through moments of legal and operational uncertainty. In addition to his practice, he leads the firm’s pro bono efforts, reinforcing his long-standing commitment to service and access to justice.