Larson O’Brien’s litigation experience spans all types of real estate, property, and land use disputes. We litigate disputes arising from leases, purchase agreements, and development agreements; environmental disputes; inverse condemnation and eminent domain; land use entitlements, easements, and zoning issues; construction disputes; real estate partnership agreements; and the California Environmental Quality Act (CEQA). Our attorneys also litigate mandamus proceedings defending or challenging governmental decisions that impact our clients’ property rights and business interests.

Our real estate litigation clients include residential and commercial developers, buyers, sellers, property owners, property managers, construction companies, municipalities, hotels and restaurants, landlords, tenants, and investors.  We regularly represent property owners in litigation arising from allegations that the federal, state, or local governments have violated their constitutional rights by taking the client's property. 

Larson O'Brien's environmental, basic materials, and natural resources litigation practice serves clients in federal and state trials, appeals, and administrative proceedings. Our lawyers have been at the forefront of many of California’s largest environmental and enforcement actions, representing both plaintiffs and defendants. We litigate Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or “Superfund”) enforcements, cost recovery, and clean up actions, and other matters arising from:

  • the Resource Conservation and Recovery Act (RCRA);

  • the Clean Water Act;

  • the Clean Air Act;

  • the Waters of the United States (WOTUS) rule;

  • CEQA; and

  • other state and federal environmental statutes and regulations.

The firm's environmental, basic materials, and natural resources litigation practice encompasses a premier water practice. Our attorneys have successfully represented and advised municipal water districts, government entities, and potentially responsible parties at all stages of the CERCLA proceedings and Superfund litigation, to remediate and restore groundwater contaminated by an array of volatile organic compounds and perchlorate. We have also represented and advised water districts, landowners, businesses, and a federally-recognized Native American tribe in disputes over groundwater and riparian water rights. 

In addition to litigation, Larson O’Brien advises clients on environmental and natural resource issues related to administrative, regulatory, and enforcement issues with the Environmental Protection Agency (EPA), the Department of Toxic Substances Control (DTSC), and other government entities.