Chelsea E. O'Sullivan

Leader in cannabis cultivation projects and co-chair of Cannabis & Industrial Hemp industry group. Works at the intersection of land use and water law. Santa Barbara office managing partner. Amy Steinfeld is a land use and water lawyer with a broad understanding of environmental issues and a passion for the cannabis industry. Operating in one of the most heavily regulated industries and states, her passion and genuine concern for her clients is critical to her success. Drawing on a substa...

Specialized California water law expertise. Trusted strategic advisor and project manager for complex water supply and infrastructure projects. Innovative problem solver for high-stakes water disputes. With more than 20 years of specialized expertise in water law, Stephanie Hastings has played a leading role in California’s most complex and precedent-setting water matters. She brings sophisticated legal skill and experience to the acquisition, maintenance and protection of water resourc...

Kristin Larson is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Kristin, who practices law in Santa Barbara, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kristin is held by other top lawyers in the same geographic and legal practice area.

Respected authority on California and Central Coast land use, environmental and real estate issues. Leads developers, energy companies, large land owners and cannabis and hemp growers through complicated land use matters. Expansive expertise in entitlements, enforcement matters and litigation. Beth Collins is a problem solver who handles high-profile, large and controversial land use matters along the Central Coast and throughout California. She formulates strategies that help her clients&mda...

William M. Grewe is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. William M., who practices law in Ventura, California, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William M. is held by other top lawyers in the same geographic and legal practice area.

Nearly 20 years of experience handling the most significant and complex water matters in California, Nevada and across the west. Leader in California groundwater management. Business-savvy approach to water strategy. Brad Herrema understands the vital role that water plays in any project. From the development of groundwater management strategies, to identifying opportunities for water investment, to securing recreational water supplies, his approach integrates each client’s unique busin...

Robert Curtis is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Robert, who practices law in Santa Barbara, California, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert is held by other top lawyers in the same geographic and legal practice area.

Pragmatic water litigator and skilled negotiator. Nearly 30 years of water law experience. Plays a leading role in California’s most important water rights cases. Rob Saperstein is widely respected for his ability to optimize his client’s rights in groundwater, surface water and recycled water development and management. Public entity water suppliers and large landowners rely on his legal counsel to protect and maximize their water resources. Working in both transactional and liti...

Vivian Bickford is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Vivian, who practices law in Santa Barbara, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Vivian is held by other top lawyers in the same geographic and legal practice area.

Natural resources attorney with unique expertise combining public agency work with water law. Specializes in emerging groundwater laws and implementation of the Sustainable Groundwater Management Act (SGMA). Immersive, team-player, prioritizing a preemptive approach to representation. Jena Acos’ practice thrives at the intersection of water and public agency law. She intimately understands how natural resource issues interrelate with the economic, social and regulatory aspects inherent ...