1. Business Claims Require Documented Obligations and Losses
A late delivery or unpaid invoice alone does not establish a lawsuit. Before filing, identify the disputed obligation, verify supporting evidence, and estimate resulting losses.
Contract Terms and Performance Establish the Starting Point
Review signed agreements, amendments, purchase orders, and correspondence establishing each party's promises. Match payment dates, acceptance standards, and conditions against delivery records and the company's conduct.
Contract claims generally require an enforceable obligation, breach, resulting harm, and the claimant's performance or legal excuse. A supplier's delay still depends on the agreed deadline. See breach of contract litigation for individual elements and defenses.
Financial Harm Must Be Linked to the Breach
California Civil Code § 3300 generally permits compensation for harm proximately caused by a contractual breach or likely to result from it in the ordinary course. Unpaid amounts may be straightforward; lost-profit claims require sales records, cost evidence, and analysis of other causes.
Account for liability limits and mitigation before estimating recovery. Even a strong claim may be impractical against an insolvent defendant. Fraud or regulatory violations require separate analysis.
2. The Proper Court Depends on Jurisdiction and Venue
A headquarters address does not determine where a company can sue. Subject-matter jurisdiction, personal jurisdiction, and venue address different questions about the claim, defendant, and filing location.
State-Court Venue Depends on the Defendant and Transaction
California Superior Courts hear many state-law commercial claims. Code of Civil Procedure § 395 addresses venue based on factors including a defendant's residence and certain contract-performance locations. Section 395.5 provides separate rules for corporations and associations, including where a contract was made or breached or the defendant's principal place of business is located.
A Los Angeles plaintiff cannot assume its home county is proper. Confirm the defendant's entity, performance location, and forum terms.
Federal Jurisdiction and District Boundaries Are Separate Questions
Federal-question jurisdiction may exist under 28 U.S.C. § 1331. Diversity jurisdiction under § 1332 generally requires complete diversity of citizenship and more than $75,000 in controversy, excluding interest and costs. A corporation's citizenship depends on its incorporation and principal place of business, not merely county addresses.
The Central District includes Los Angeles, Orange, Riverside, San Bernardino, Ventura, Santa Barbara, and San Luis Obispo Counties. The Southern District includes San Diego and Imperial Counties (28 U.S.C. § 84). Federal venue must also satisfy § 1391.
Filing Rules and Case Management Vary by Court
California Rules of Court, rule 2.253 permits mandatory electronic filing under local rules, with exceptions. Check each court's filing method and service requirements. In the Central District, attorneys generally open civil cases through CM/ECF.
Rule 3.400 identifies cases requiring exceptional judicial management, including disputes with extensive evidence or numerous parties. The dollar amount alone is not decisive. See complex commercial litigation for related issues.
3. Contract Provisions and Time Limits May Restrict the Options
Contract clauses may redirect a dispute before any court examines its merits. Review forum, arbitration, notice, and remedy provisions against applicable law.
Arbitration and Forum Clauses Need Separate Review
A forum-selection clause identifies a court or location; arbitration generally sends covered disputes to a private decision-maker. California Code of Civil Procedure § 1281 recognizes written arbitration agreements, subject to contract defenses. The Federal Arbitration Act, 9 U.S.C. § 2, may also apply to transactions involving interstate commerce.
Check which parties and claims the clause covers. Affiliates may not be signatories, and some claims may fall outside its scope. A choice-of-law clause governs a different issue: which substantive law applies.
Limitations Periods Do Not Share One Clock
Code of Civil Procedure § 337 generally allows four years for claims founded on written contractual instruments. Section 339 generally sets two years for certain obligations not founded on writings. Sales-of-goods disputes may instead fall under Commercial Code § 2725, which generally provides four years. The original agreement may shorten that period to at least one year but cannot extend it.
Check accrual, tolling, statutory exceptions, and contractual notice-and-cure provisions separately. Settlement discussions do not necessarily extend filing deadlines.
4. Resolution Choices Should Match the Company'S Risk
A viable claim may still be costly. Compare potential recovery with legal fees, business disruption, and collectability. Define whether the objective is payment, performance, exit, or urgent relief.
Negotiation, Arbitration, and Litigation Serve Different Goals
Negotiation can produce revised payment or delivery terms without formal proceedings. Arbitration can change discovery, fees, and review of the final decision, depending on the agreement and applicable law. Litigation provides access to judicial remedies but adds procedural demands. For deeper procedural issues, see arbitration.
Settlement terms should reflect collectability and future costs. Temporary injunctive relief requires evidence meeting the governing standard; a substantial loss does not automatically justify an order.
Evidence Preservation and a Written Decision Record Come First
When litigation is reasonably anticipated, preserve relevant emails, messages, financial records, and shared files, including by suspending routine deletion when necessary. A chronology may expose missing evidence before discovery. Track who controls original documents and avoid relying solely on summaries.
A pre-filing memorandum should identify defendants, claims, defenses, forum, deadlines, costs, and the intended result. Separate documented facts from assumptions before deciding whether to negotiate, arbitrate, or sue.
20 Oct, 2026
