Larson O’Brien LLP's national commercial litigation practice focuses on complex contractual disputes and business torts, class actions, intellectual property litigation, real estate litigation, entertainment litigation, employment litigation and counseling, and environmental and natural resource litigation. The firm’s attorneys draw on decades of experience representing clients in the real estate, entertainment and sports, healthcare, hospitality, insurance, financial services, and energy and natural resource industries. Our clients include Fortune 500 companies, small and mid-size businesses, non-profit corporations, sovereigns, governmental entities and public agencies, corporate officers and directors, public figures, doctors, attorneys, and other professionals.

Complex Contractual Disputes and Business Torts

Our attorneys are among the best in the nation at litigating complex contractual and business disputes when our clients’ reputations and businesses are at stake. We have successfully prosecuted and defended breach of contract claims related to property disputes and real estate developments; distribution and exclusivity agreements; product and media licenses; royalties and commissions; corporate sponsorships; and contingent attorney fee arrangements—to name only a few. Our attorneys have also represented clients as plaintiffs and defendants in matters claiming fraud, antitrust and unfair competition claims, kickbacks and corporate corruption, and negligence, and in joint venture, limited-liability company, partnership, shareholder, and securities disputes. 

Class Actions

Larson O’Brien offers diverse and robust class action capabilities. Our attorneys have successfully and efficiently defended an array of companies of varying sizes, including a mortgage servicer; technology companies; clothing manufacturers; retail brands; food and beverage companies; hotels; a national fast food chain; and a winery. Our attorneys have defended against consumer class actions, including lawsuits alleged under California’s Consumer Legal Remedies Act (CLRA); the Song-Beverly Act; the Fair Debt Collection Practices Act; Rosenthal Fair Debt Collection Practices Act; the Telecommunications Consumer Protection Act (TCPA); and the Securities and Exchange Act. As Plaintiff’s counsel in certain highly selective consumer class action lawsuits, the firm has been appointed by federal courts to serve as both lead counsel and liaison counsel in national putative class action lawsuits.

Real Estate and Eminent Domain Litigation

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. Larson O’Brien spans all types of real estate, property, and land use disputes. We litigate disputes arising from leases, purchase agreements, 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. 

Larson O'Brien regularly represents 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. Our attorneys have represented more than a thousand landowners who have successfully pursued takings claims arising from the enactment of Section 8(d) of the Trails Act in the Court of Federal Claims.  

Environmental and Natural Resource Litigation

Larson O’Brien LLP’s environmental and natural resource litigation practice represents clients in federal and state trials and 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 CERCLA (Superfund) enforcements, cost recovery, and clean up actions, and other matters arising from 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.

Our environmental and natural resource litigation practice encompasses a premier water practice. Our lawyers 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.

Employment Litigation and Counseling

Larson O’Brien’s labor and employment practice includes defending employers in high-stakes single plaintiff and class action employment disputes in state and federal courts, arbitration and before administrative bodies. We defend employers and managers against discrimination claims, wage and hour disputes, wrongful termination, harassment, and retaliation. We also represent executives in high-profile employment matters, arising from executive compensation agreements and separation agreements.

In addition to litigation, Larson O’Brien provides comprehensive counseling to employers in order to mitigate exposure before litigation is filed. In this capacity, our attorneys have conducted training regarding compliance with state and federal employment laws and conducted internal workplace investigations.

Intellectual Property and Entertainment Litigation

At Larson O’Brien, we understand how important and valuable our clients’ intellectual property is in today’s economy. Our record winning high-stakes trials is a critical tool when it comes to protecting intellectual property assets. We aggressively represent clients who need to protect intellectual property assets and we defend the originality of our clients’ creations, in copyright, patent, trade secrets, and trademark disputes. Entertainment and media companies, advertisers, technology start-ups, actors, musicians, and public figures regularly call on us to litigate claims related to rights of publicity, false advertising, and misappropriation of ideas.