Plaintiff-Side Business Dispute Resolution

We represent businesses and individuals in breach of contract, business tort, fraud, partnership disputes, and commercial disputes in California state and federal courts.

Trujillo & Winnick LLP represents businesses and individuals as plaintiffs in California commercial disputes, including breach of contract, breach of fiduciary duty, fraud, tortious interference, and unfair competition claims under Business & Professions Code § 17200 (the UCL). We assess merits, exposure, and litigation path before filing.

Business litigation requires strategic assessment of the legal and factual merits, the financial exposure at stake, and the realistic litigation path before filing.

Commercial Claims We Evaluate

  • Breach of contract
  • Fraud and intentional misrepresentation
  • Negligent misrepresentation
  • Breach of fiduciary duty
  • Tortious interference with contract or prospective economic advantage
  • Conversion and misappropriation
  • Unfair competition under Business & Professions Code § 17200

When a counterparty fails to perform contractual obligations, breach of contract claims may arise in connection with vendor agreements, service contracts, employment agreements, partnership agreements, and commercial leases.

Partner and shareholder disputes can arise over management decisions, profit distributions, buyout rights, and fiduciary obligations. We evaluate claims for breach of fiduciary duty, derivative claims on behalf of an entity, and dissolution matters.

California’s Unfair Competition Law (Business & Professions Code § 17200) prohibits unlawful, unfair, or fraudulent business practices and provides remedies including restitution and injunctive relief. UCL claims frequently accompany contract and fraud claims in commercial disputes.

Approach

Each matter is evaluated on its own facts. We assess the strength of the claims, the defendant’s likely defenses, and the realistic recovery before recommending a litigation strategy.

Last reviewed: July 2026

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Contact us to discuss whether you may have a claim.

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Frequently Asked Questions

What types of business disputes do you handle?

We evaluate breach of contract, fraud and misrepresentation, tortious interference, partnership and shareholder disputes, unfair competition, and breach of fiduciary duty claims. We represent California businesses and individuals as plaintiffs in state and federal court.

What is the Unfair Competition Law (Section 17200)?

California's Unfair Competition Law (Business & Professions Code § 17200) prohibits unlawful, unfair, or fraudulent business practices. It provides remedies including restitution and injunctive relief, and often accompanies contract and fraud claims in commercial disputes.

Is there a deadline to file a business dispute in California?

Yes. Business claims carry different limitations periods — for example, written contracts generally allow four years and fraud generally three — measured from when the claim accrued or was discovered. Because deadlines vary by claim type, consult an attorney promptly.

Do you handle partnership and shareholder disputes?

Yes. We evaluate disputes over management, profit distributions, buyout rights, and fiduciary obligations, including breach of fiduciary duty, derivative claims on behalf of an entity, and business dissolution matters.