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Leading Environmental and Energy Lawyer Peter H. Weiner Joins Cox, Castle & Nicholson LLP as Partner
[January 18, 2022]

Leading Environmental and Energy Lawyer Peter H. Weiner Joins Cox, Castle & Nicholson LLP as Partner

Cox, Castle & Nicholson LLP, a leading full-service law firm specializing in real estate in the United States, announced today that leading environmental and renewable energy attorney Peter H. Weiner has joined the Firm as Partner. A nationally-recognized attorney with a top Chambers USA environmental ranking, Mr. Weiner specializes in solar energy and brownfield redevelopment. He brings a wealth of experience to Cox, Castle & Nicholson's Environmental Practice, which is highly regarded for its ability to assist clients with complicated land use and environmental problems and in all aspects of brownfield redevelopment. At Cox, Castle & Nicholson, Mr. Weiner will continue to focus on complex environmental, energy, land use and real estate matters.

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Peter Weiner (Photo: Business Wire)

Peter Weiner (Photo: Business Wire)

"We believe environmental and renewable energy will continue to be a significant growth area for us," said Mathew Wyman, Co-Chairman of Cox, Castle & Nicholson. "Peter's tremendous experience, expertise and outstanding reputation fits perfectly with our existing high leve environmental and renewable energy practice. So, we are thrilled with his decision to join Cox, Castle & Nicholson and look forward to him being a key component of our continued growth in this area."

Mr. Weiner joins Cox, Castle & Nicholson from Paul Hastings, where he founded the Environmental and Energy Practice. He has decades of experience representing renewable energy companies, developers, manufacturers, waste recyclers and consumer products companies in federal, state and local environmental, energy, and OSHA regulatory matters, litigation and legislation.

Mr. Weiner's energy practice includes representation of solar energy, wind, geothermal, and biomass companies. In his environmental practice, Mr. Weiner focuses on brownfield redevelopment, California Environmental Quality Act and NEPA, land use, superfund, the Clean Water Act, the Clean Air Act, hazardous waste management, species and wilderness protection, Proposition 65 and environmental insurance. As the former Special Assistant to the Governor (Jerry Brown) for Toxic Substances Control, Mr. Weiner has been involved in these areas of land use and environmental law for more than 35 years.

"I'm thrilled to join Cox, Castle & Nicholson as it is a preeminent law firm with strong expertise in environmental, renewable energy and real estate matters, and these issues align perfectly with the core area of my practice," said Weiner. "I welcome the opportunity to unite our practices in order to best serve all of Cox Castle's clients and look forward to working with the Firm's highly skilled attorneys that I have heard so much about over the years."

Mr. Weiner has received numerous professional accolades, including The Legal 500's Energy Regulation and Conventional Power recognition (2021) and Environment: Regulatory recognition (2021). He is consistently recognized as a top California environmental lawyer by Chambers USA with a Band 1 ranking. Mr. Weiner earned his Juris Doctor from Yale University and graduated from Harvard University with a Bachelor of Arts degree. He is based in Cox, Castle & Nicholson's San Francisco office.

About Cox, Castle & Nicholson

Cox, Castle & Nicholson LLP was founded in Los Angeles in 1968, with the goal of providing superior and comprehensive legal services to businesses, institutions, and individuals in all aspects of the real estate, finance and construction industries. Cox Castle is now one of the largest full-service law firms specializing in real estate in the United States and has over 130 transactional and litigation attorneys in its Los Angeles, Orange County and San Francisco offices.

The firm has substantial expertise in matters involving land and improved property acquisitions and dispositions; joint ventures; single and multi-family residential development; land use, entitlement and regulatory compliance (including coastal commission and condemnation); office, industrial, retail and mixed-use development, leasing and management; commercial lending and institutional investment; loan workouts and financial restructuring; construction; resort and hospitality; labor and employment; risk management and insurance; environmental compliance; renewable energy and natural resources; and tax and estate planning. For more information, please visit

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