What Is Business Litigation? A California Litigator Explains

Last updated: November 2026

Business litigation is the process of resolving disputes that grow out of commercial relationships through the courts or arbitration. The dispute may be between two companies, between a company and a customer or vendor, or among the owners of a single business. It covers breach of contract, business fraud, partnership and shareholder disputes, trade secret theft, and unfair competition. Kolmogorov Law, P.C. handles business litigation for companies in Orange County, Los Angeles, and across California, from the first demand letter through trial.

Call (909) 235-6116 or contact us online to discuss a business dispute.

What business litigation means in practice

Any lawsuit where at least one party is suing or being sued because of its business dealings falls under the label. A supplier who was not paid. A former partner who claims he was pushed out. A competitor accused of poaching a client list.

What the cases share is not a single statute but a set of recurring questions. Was there an agreement, and what did it require? Who broke it first? What did the breach cost, and can that cost be proved with documents rather than memory?

I spend most of my working life on those three questions in one form or another.

The disputes that make up most business cases

Three patterns account for a large share of what comes through the door.

The first is the unpaid or underperformed contract. A software vendor delivers late and incomplete, the customer withholds the final payment, and each side insists the other breached first. The contract is usually ten pages long and nobody read page seven.

The second is the ownership fight. Two founders start a company on a handshake, one works harder than the other for three years, and the resentment surfaces when the business finally becomes worth something. They are rarely about money alone.

The third is the departing insider. A sales manager leaves for a competitor and the customer pipeline follows him. The former employer suspects the data went out the door. The new employer wants to know whether it has just hired a lawsuit.

What a business litigation attorney actually does

Most of the job happens before and after the courtroom, not in it.

At the start, the work is diagnostic. I read the contract, the emails, and the financial records, and I tell the client what the claim is worth and what it will cost to pursue or defend. Many disputes end at this stage with a demand letter and a negotiated resolution, and our guide to demand letters explains how that works.

If a lawsuit is filed, the attorney drafts or answers the complaint, handles the motions that narrow the case, runs discovery to gather evidence, takes and defends depositions, and prepares the matter for trial. Along the way the attorney is also negotiating, because the great majority of business cases settle, and a case that is well prepared settles on better terms.

What a business litigator does not do is close deals. Drafting contracts and forming entities are transactional work. We handle the dispute when a deal goes wrong.

Business, corporate, commercial, and civil litigation

Civil litigation is the widest category: any lawsuit that is not a criminal prosecution. Business or commercial litigation is the slice of civil litigation that involves companies and commercial relationships. Corporate litigation is narrower still and usually refers to disputes about how a corporation is governed: director duties, shareholder rights, derivative claims, and dissolution. We cover that subject in our corporate litigation guide.

A business dispute may be a limited civil case, with simplified procedure, if the amount in controversy is $35,000 or less, exclusive of attorney fees, interest, and costs. (Code Civ. Proc., § 85, subd. (a).) Anything larger is an unlimited civil case with full discovery and motion practice.

How a business case moves through a California court

A business lawsuit in California follows a predictable sequence: complaint, response, discovery, motions, settlement efforts, and trial if nothing else resolves it. Our step-by-step guide to a business lawsuit walks through each stage, and our guide to suing a company covers the plaintiff's side.

Many commercial contracts route disputes to arbitration instead, which changes the procedure, the cost, and the right to appeal.

What a business case costs and who pays

Cost is the first question most owners ask. Our cost guide breaks down what each phase typically involves.

Two rules shape the economics. A prevailing party is generally entitled to recover its court costs as a matter of right. (Code Civ. Proc., § 1032, subd. (b).) Costs are a small fraction of what a case consumes. Attorney fees are different. Each side usually pays its own unless a contract or statute shifts them. When a contract does contain a fee clause, California makes it reciprocal: the party who prevails on the contract recovers fees whether or not the clause named that party. (Civ. Code, § 1717, subd. (a).) That one clause often decides whether a case is worth bringing.

Where business cases are heard

Business disputes without a federal claim are filed in the Superior Court. For Orange County that usually means the Central Justice Center in Santa Ana. For Los Angeles it is often the Stanley Mosk Courthouse downtown. Cases involving federal trademark, copyright, or trade secret claims, or parties from different states, may be filed in the Central District of California, which sits in both Santa Ana and Los Angeles.

What to bring to the first meeting

Bring the contract, including every amendment and attachment. Bring the emails and messages that show how the relationship went wrong. Bring the invoices, payment records, and any accounting that shows what you lost. Bring any demand letter or complaint you have received, and the date you received it. If the dispute is with a co-owner, bring the operating agreement or bylaws and the most recent financial statements.

Frequently asked questions

What is business litigation?

Business litigation is the resolution of disputes arising from commercial relationships through lawsuits or arbitration. It includes breach of contract, fraud, partnership and shareholder disputes, trade secret misappropriation, unfair competition, and similar claims. The parties are typically companies, their owners, or people who dealt with them in a business capacity.

What does a business litigation attorney do?

A business litigation attorney evaluates the dispute and advises on the strength and value of the claim. The attorney then sends or answers demand letters, files or defends the lawsuit, conducts discovery, argues motions, negotiates settlement, and tries the case if it does not settle. The attorney also manages evidence preservation and insurance notice at the start.

Is business litigation the same as commercial litigation?

In practice, yes. Lawyers and courts use the terms interchangeably to describe lawsuits between businesses or about business relationships. Some firms use "commercial litigation" to signal larger matters, but there is no legal distinction between the two.

How long does a business lawsuit take in California?

Most contested business cases in Orange County and Los Angeles take between one and two years to reach trial, and many settle somewhere in the middle. Simpler cases can resolve in months. Cases with many parties or heavy document discovery can take longer. The timeline depends more on the court's calendar and the parties' willingness to settle than on anything else.

When should a business owner call a litigation attorney?

Earlier than most do. The right time is when a dispute first looks like it will not resolve on its own: a counterparty stops responding, a partner starts acting unilaterally, or a demand letter arrives. Early advice costs little compared to an angry email that becomes an exhibit, or a missed deadline that forfeits a defense.

Talk to a California business litigation attorney

If your business is in a dispute or expects one, call (909) 235-6116 or contact us online. Kolmogorov Law, P.C. is located at 327 Magnet, Irvine, CA 92618, and represents businesses in Orange County, Los Angeles, and throughout California.

This page provides general information about California law and is not legal advice. Outcomes depend on the contract, the facts, and the court.