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Christian Marsh is a trusted advisor to public agencies and private companies on regulatory and land use entitlement matters affecting a wide variety of projects and industries. His experience spans real estate developments, wastewater and water supply-related infrastructure, renewable and traditional energy facilities, mining operations, habitat restoration, and port and waterfront developments.

No matter the project’s complexity, Christian provides practical guidance on environmental and regulatory issues, including endangered species protections, water rights, wetlands, the public trust doctrine, and environmental review under NEPA and CEQA. Christian regularly assists clients in resolving administrative and judicial enforcement actions arising from allegedly unlawful impacts to endangered species, coastal resources, rivers and streams, as well as federal and state waters and wetlands. With a particular emphasis on matters pertaining to NEPA and CEQA review, Christian represents clients in state and federal court, including successful and consecutive appeals to the California Supreme Court.

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On July 14, 2026, the U.S. Fish and Wildlife Service (“FWS”) and National Marine Fisheries Service (“NMFS”) (collectively, the “Services”) jointly finalized a rule rescinding the regulatory definition of “harm” under the federal Endangered Species Act (“ESA”). The final rule will take effect 60 days after publication and represents the culmination of the Services’ April