Trusted business dispute lawyers serving clients across Irvine, CA for over 26 years.

Ghassemian Law Group has spent 26 years handling business disputes for companies throughout Southern California. Our Irvine, CA, business dispute lawyer works with clients facing real financial exposure and need attorneys who prepare for trial from day one. We offer free consultations.

Business Dispute Lawyer Irvine, CA 

A business dispute lawyer steps in when a commercial relationship has broken down, and one or both sides face serious financial consequences. That could mean a vendor who walked away from a contract, a partner siphoning money out of the company, or a competitor stealing trade secrets.

Irvine is one of the largest commercial hubs in Orange County. Companies here range from two-person startups to publicly traded corporations with offices nationwide. The volume of business activity means disputes are constant, and because the companies involved tend to have real revenue at stake, those disputes involve significant dollar amounts. An Irvine business dispute attorney who has tried these cases in Orange County courts brings preparation that changes outcomes.

Types of Business Dispute Cases We Handle in Irvine

We represent companies and individuals across Irvine, CA in disputes that threaten their operations, their finances, or both. No two cases look exactly alike, but most fall into one of the following categories.

• Breach of Contract. This is the most common business dispute we see. One party signed an agreement, the other party did not hold up their end, and now someone is out real money. Commercial leases, vendor deals, service agreements, joint ventures. We have handled breach of contract claims at every level of complexity.
• Shareholder and Ownership Disputes. One owner accuses another of self-dealing. Votes get blocked. Money moves to accounts nobody agreed on. By the time a shareholder dispute reaches our office, the relationship is usually beyond repair. The question becomes how to protect each person’s financial interest while keeping the business operational.
• Partnership Disputes. Two people start a company together, and five years later, they cannot agree on anything. One wants to expand, the other wants to sell. Or worse, one has been taking distributions that the other never authorized. A business partnership dispute involves both legal claims and practical questions about how the business survives the fight.
• Commercial Litigation. Some disputes cross categories. A disagreement that started as a contract issue turns into a fraud claim once documents surface in discovery. We handle multi-layered commercial litigation involving businesses, vendors, and former employees who violated confidentiality or non-compete agreements.
• Unfair Business Practices. California’s unfair competition laws cast a wide net. A competitor that engages in false advertising, poaches your clients through deceptive means, or misrepresents its products can be held accountable through injunctive relief and monetary damages.
• Trade Secret Disputes. Your pricing model, client list, or proprietary process walks out the door with a former employee. That is not just a frustration. It is a legal claim that may require an emergency court order to prevent further damage.
• Breach of Fiduciary Duty. Officers and directors owe the company a duty of loyalty. When they redirect opportunities, approve self-serving transactions, or neglect their obligations, the company and its other stakeholders have a right to hold them personally accountable.
• Fraud in Business Transactions. Someone sold you a business with inflated revenue numbers. Or a merger partner concealed liabilities that surfaced three months after closing. These cases live and die on documents and depositions, and on your attorney’s willingness to dig through every record.

Why Choose Ghassemian Law Group as My Business Dispute Lawyer in Irvine, CA?

A Track Record Built on Complex Business Disputes

This firm does not dabble in business disputes. It is what we do. Ghassemian Law Group is a business litigation firm that has recovered millions of dollars through corporate governance battles across multiple states, litigation against multinational corporations, and shareholder fights where the client’s entire equity stake and personal liability were on the line.

Mahyar Ghassemian has practiced since 1999. She spent years litigating high-value business and construction cases at well-known Southern California firms before founding Ghassemian Law Group in 2010. Her background includes a master’s degree in physics from California State University, Long Beach, and a law degree earned Cum Laude from Western State College of Law. That analytical training shows up in how we build cases. We do not guess at strategy. We construct it from the evidence.

The firm is active in the Orange County Bar Association, NAWBO, AGC, and SCCA, and has been recognized for its work in business and construction litigation throughout Orange County.

What Is Important to Understand About Business Dispute Cases?

Claims, Liability, and Damages in Business Disputes

You do not need a law degree to understand your case. But knowing the basic framework makes every conversation with your attorney more productive.

• Breach of contract is the most straightforward: a valid agreement existed, your side performed, the other side did not, and you suffered financially as a result
• Fraud requires more: you have to show a false statement, the speaker’s knowledge that it was false, intent to mislead, your reasonable reliance, and actual damages
• Fiduciary duty claims target insiders who put themselves ahead of the company, whether through self-dealing, unauthorized transactions, or neglect
• Trade secret misappropriation protects confidential business information that the company took reasonable steps to keep private
• Unfair competition is California’s broadest business tort, covering unlawful, unfair, or deceptive conduct that harms competitors or consumers

What you can recover depends on the claim. Contract disputes typically yield lost profits and the cost of being put back where you would have been. Fraud opens the door to punitive damages. And if the contract includes a fee-shifting clause, which most commercial agreements in California do, attorney fees become recoverable.

What Are Important Aspects of a Business Dispute Case?

Documents win these cases. Or they lose them.

Contracts, amendments, emails, texts, financial statements, board minutes, bank records. If something was put in writing, it will be used by one side or the other. If your strongest argument depends on a handshake nobody documented, we need to know that on day one because it changes how we approach the entire case.

The other reality is that business disputes rarely stay between two parties. A fight with your partner could pull in the company’s accountant, its bank, or a vendor with claims of their own. Hiring a litigator early, before the lawsuit is filed, can preserve evidence and sometimes prevent the case from ever reaching a courtroom.

If you have already been sued, the timeline is tighter. You generally have 30 days to file a response. Miss that deadline and you risk a default judgment.

What Is the Business Dispute Case Timeline?

There is no single answer. A breach of contract between two small companies moves very differently from a multi-party shareholder dispute involving entities in three states. But the general sequence in California follows this pattern:

• Pre-litigation: demand letters, negotiation, and informal resolution attempts, ranging from a few weeks to several months
• Filing and response: the plaintiff files a complaint, and the defendant has 30 days to answer after being served
• Discovery: production of documents, written interrogatories, and depositions, typically lasting 6 to 12 months, depending on complexity
• Mediation: Orange County courts frequently require mediation before trial, and a significant number of disputes settle here
• Trial: for cases that do not resolve, trial generally occurs 12 to 24 months after filing

We have resolved disputes with a single demand letter. We have also tried cases that lasted years. Protecting your business during a founder dispute or forced exit can involve multiple court filings and rounds of negotiation before the parties reach a workable agreement.

What Should You Bring to Your Business Dispute Consultation?

Pull together what you can from the list below before your meeting with an Irvine business dispute attorney:

• The contract, operating agreement, or partnership agreement at the center of the dispute
• Emails, text messages, and letters between the parties
• Financial records that show the losses or amounts in dispute
• Corporate formation documents, like articles of incorporation or your LLC operating agreement
• Any demand letters or court papers you have already received

You do not need everything to be perfectly organized. Bring what you have. We sort through it and tell you what is useful and what we still need. That first meeting is a working session. You explain the situation, we assess it, and we give you a direct answer about your options.

What Are Important California Legal Resources for Business Dispute Cases?

Business owners in Irvine have access to public resources that provide background on the legal system and commercial obligations in California.

• The Orange County Superior Court publishes civil filing information, case access tools, and procedural rules for business disputes heard in the county
• The California Courts Self-Help Guide offers step-by-step guidance on civil lawsuits, filing deadlines, and required forms
• The California Secretary of State maintains records on business entity filings, corporate status, and registration information
• The California Legislature’s website provides searchable access to current statutes, including the Code of Civil Procedure
• The U.S. Small Business Administration covers federal-level guidance on business formation, planning, and compliance

On filing deadlines: California Code of Civil Procedure Section 337 gives you four years to bring a breach of written contract claim. Section 339 shortens that to two years for oral agreements. Tolling provisions and the discovery rule can alter both deadlines, which is why talking to an Irvine, CA business dispute lawyer early is the safer move.

Reach Out to Ghassemian Law Group to Schedule a Consultation

If your company is in the middle of a business dispute, has been threatened with a lawsuit, or is dealing with a relationship that has gone sideways in Irvine, Ghassemian Law Group offers free consultations. We represent companies and business owners throughout Southern California in disputes where the financial stakes are real.

Contact us to schedule your consultation. We respond to every inquiry promptly.