Irvine Business
Litigation

Attorneys For
California Businesses

Representing Orange County businesses since 1998, Cadden & Fuller LLP is a recognized leader in California Proposition 65 defense and sophisticated business litigation for small and mid-size companies. When a dispute threatens your business’s future, you need attorneys who have already tried these cases and won.

How We Work

Straight Talk, Hard Work, Responsive Communication

Most of our clients have never been sued, or never had to sue anyone, before their case landed on our desk. We start every matter the same way: a direct conversation about what happened, what you’re exposed to, and what it will realistically cost to fight or resolve. From there, we assess the strengths and weaknesses of your position honestly — including the parts you may not want to hear — and build a strategy around your business goals, not just the lawsuit in front of you. You’ll hear from us when something changes, not just when we bill.

Schedule A Consultation

Understand your business,
dispute, & objectives.

Case
Assessment

Analyze risks, opportunities, &
legal options.

Litigation
Strategy

Develop a practical approach
designed to protect your interests.

Received
A Proposition 65 60-Day
Notice?

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Proposition 65 Leadership

If you’ve received a Proposition 65 60-day notice, you’re already on the clock. These notices allege that a product sold in California exposes consumers to a listed chemical without the warning the law requires — and they can lead to significant statutory penalties if mishandled. Cadden & Fuller LLP has built one of Orange County’s deepest Proposition 65 practices, defending manufacturers, distributors, and retailers against these claims for years. We know how the serial-notice plaintiffs’ bar operates, what a defensible warning looks like, and when a case should settle versus fight.

If a notice has landed on your desk, the worst move is waiting — early strategy decisions in a Prop 65 matter often determine the outcome. Contact us before your response window closes.

Call us today
(949) 788-0827

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What We Do

Our Practice Areas

Cadden & Fuller LLP concentrates on business litigation for California companies — disputes between partners and shareholders, breach of contract claims, and the kind of high-stakes disagreements that put a business’s future on the line. Two areas define our practice today. We are among Orange County’s most experienced firms handling Proposition 65 notices and litigation, defending businesses against claims tied to chemical exposure warnings.

We also litigate trademark and trade secret disputes, protecting the intellectual property that gives a business its edge, and we handle ADA access claims that increasingly target small and mid-size companies. Beyond these focus areas, we represent businesses throughout Orange County — Irvine, Newport Beach, Santa Ana, and Huntington Beach — in commercial litigation matters. If your business is facing a legal fight, we can tell you quickly whether it’s one we should be having.

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Business Litigation

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Employment Litigation

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Real Estate Litigation

who we help

Business disputes are stressful —
we make them manageable

Whether you’re the business being sued or the business that’s been wronged, a lawsuit can feel like it’s consuming everything — your time, your team’s focus, your peace of mind. Cadden & Fuller LLP represents small and mid-size California businesses through exactly these moments. We work with owners and executives who need a clear-eyed read on their exposure, a strategy that fits their budget and risk tolerance, and an attorney who picks up the phone.

You don’t need to become an expert in litigation. You need someone who already is — and who will tell you, plainly, what happens next.

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Meet Our Attorneys

Meet Our
Business Litigation
Attorneys

Judy Hirahara Image

Judy S. Hirahara

Senior Counsel
H. Daniel Fuller Image

H. Daniel Fuller

Partner
William T. Carlsen Image

William T. Carlsen

Senior Litigation Associate
Trademarks & Trade Secrets

When Someone Takes
Your Trademark Or Trade Secret

A competitor copying your brand, or a former employee walking out with your client list or formulas — these fights move fast, and how you respond in the first weeks often decides the outcome.

Cadden & Fuller LLP litigates trademark infringement and trade secret misappropriation claims for California businesses, and handles the ADA access disputes that frequently accompany intellectual property fights for retail and hospitality clients. We pursue injunctions, damages, and negotiated resolutions built around what actually protects your business.

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Lawyers of Distinction recognizes excellence achieved in the practice of law.

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The AV Preeminent Rating recognizes lawyers for achieving the highest level of professional excellence.

Hear From Our Clients

Why Cadden & Fuller

A Senior-Led Firm, Not A Lead Mill

Cadden & Fuller LLP has represented Orange County businesses since 1998. Senior litigator H. Daniel Fuller works directly with clients from the first call through resolution — no hand-off to an associate you’ve never met. That kind of access matters when a case turns on judgment built from decades of trial experience, not a script.

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Since 1998

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Since 1998

Trusted counsel for California businesses for more than two decades.

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Senior-Led Representation

Work directly with senior attorney H. Daniel Fuller from day one through resolution.

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Direct Attorney Access

You get honest answers and practical guidance from an experienced trial lawyer.

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Proven Litigation Experience

Decades of courtroom and negotiation experience in complex business disputes.

Talk to an Orange County

Business
Attorney

If your business is facing litigation – or needs to bring a claim -don’t wait for a deadline to make the decision for you. Call
(949) 788-0827 or fill out the form below to schedule a consultation with Cadden & Fuller LLP.

Frequently Asked Questions

Answer.

We focus on business litigation for California companies — partnership and shareholder disputes, Proposition 65 defense, and trademark and trade secret litigation, including related ADA access claims.

Answer.

Cost depends on the case type and complexity. We discuss fee structure — hourly, flat-fee, or contingency, where appropriate — during your initial consultation, before any engagement begins.

Answer.

Yes. Cadden & Fuller LLP is currently accepting new business litigation matters, including Proposition 65 notices and trademark or trade secret disputes.

Answer.

We’re based in Irvine and represent businesses throughout Orange County, including Newport Beach, Santa Ana, and Huntington Beach.

A Client-Focused Approach To

Business & Real Estate Law

Contact Our Attorneys Today

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Areas We Serve

Serving Irvine, Orange County & Beyond

Cadden & Fuller LLP is based in Irvine and represents businesses throughout Orange County, including Newport Beach, Santa Ana, and Huntington Beach. Wherever
your business operates in California, if you’re facing litigation — or need to bring a claim — our attorneys can help you evaluate your options and build a plan. See how
we serve businesses in Irvine, Newport Beach, Santa Ana, and Huntington Beach.

Irvine

Irvine

Newport Beach

Newport Beach

Santa Ana

Santa Ana

Huntington Beach

Huntington Beach

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