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California Civil Litigation & Business Counsel

Costa Mesa Business & Civil Litigation Attorney

Protect What You've Built. Recover What You've Lost.

Mahrouyan Law, P.C. is a Costa Mesa-based civil litigation and business law firm representing businesses, founders, property owners, landlords, and injured individuals throughout Orange County and Los Angeles County, with selected matters accepted elsewhere in California.

  • California Bar No. 352171
  • Former Federal Judicial Extern
  • LMU Loyola Law School
  • USC Keck School of Medicine
  • UC Berkeley
  • Selected to Rising Stars, 2026–2027
When people call the firm

Counsel across disputes, transactions, and recovery.

  • 01

    A commercial contract or business relationship has broken down.

  • 02

    Commercial property, equipment, cargo, or inventory has been damaged.

  • 03

    A tenant has stopped paying rent, breached a lease, or refuses to leave.

  • 04

    Someone has been injured through another party's negligence.

  • 05

    A trademark or brand needs to be cleared, filed, or defended.

  • 06

    A founder or small business needs contracts, structure, or protection reviewed.

Editorial founder graphic for Omeed Mahrouyan, Founder and Principal Attorney of Mahrouyan Law, P.C.
Founder

Omeed Mahrouyan

You hire the lawyer. You work with the lawyer.

Mahrouyan Law maintains a selective caseload. Clients work directly with Omeed on strategy, substantive drafting, negotiations, and major case decisions.

The firm's approach emphasizes analytical preparation, careful written work, and an understanding of the client's broader commercial or personal objective.

  • LMU Loyola Law School
  • USC Keck School of Medicine
  • University of California, Berkeley
How the firm approaches a matter

A method, not a script.

  1. 01
    Understand the objective

    What the client actually needs — not what a template complaint would ask for.

  2. 02
    Preserve the evidence

    Documents, communications, and physical evidence are preserved, organized, and evaluated before the record becomes incomplete or disputed.

  3. 03
    Identify the leverage

    Where the client has leverage—legally, commercially, and practically.

  4. 04
    Develop the strategy

    A written plan for how the matter is resolved, with contingencies.

  5. 05
    Execute efficiently

    Motion practice, negotiation, or trial preparation — whichever moves the matter.

AttorneyOmeed

Law, strategy, business, and human behavior.

Beyond the firm, Omeed publishes educational content on law and leverage, business and strategy, and ideas and human behavior. The work is separate from client representation, but the habits of mind are the same.

Pillars
  • Law & Leverage
  • Business & Strategy
  • Ideas & Human Behavior
Insights

Recent writing.

Startup & Business Transactions
California Enacts AB 1609: What the New Human Customer-Service and Chatbot Rules Actually Require

California enacted AB 1609 on September 28, 2026, creating new rules for customer-service chatbots and access to human representatives at certain large private businesses. Despite shorthand descriptions of the law as a “15-minute customer-service rule,” the statute does not guarantee that every customer will speak to a human within 15 minutes. Instead, it establishes disclosure, human-access, and good-faith response requirements for businesses that meet the statute’s size threshold. AB 1609 takes effect January 1, 2027.

September 30, 2026
Landlord / Tenant
California Enacts AB 2025: New Rules for AI-Edited Photos in Rental Listings

California enacted AB 2025 on September 27, 2026, creating new disclosure rules for AI-generated and digitally altered images used to advertise rental property. Beginning January 1, 2027, covered altered images generally must be clearly disclosed, and when an altered image was created from an actual photograph, the original image generally must also be made available. The law does not ban virtual staging or ordinary photo enhancement.

September 30, 2026
Startup & Business Transactions
OpenAI Sued in California Over Hugging Face Incident: What the State’s New AI Liability Rule Actually Does

A California nonprofit filed suit against OpenAI Group PBC and OpenAI Foundation on September 29, 2026, seeking injunctive relief following a July cybersecurity incident involving OpenAI models and Hugging Face infrastructure. OpenAI and Hugging Face have both publicly acknowledged the underlying security incident, but the new lawsuit’s claims that OpenAI violated California law remain allegations that no court has adjudicated. The case also highlights a relatively new California rule addressing responsibility when artificial intelligence acts autonomously.

September 30, 2026
Serving Orange County

Based in Costa Mesa.

Mahrouyan Law is based in Costa Mesa and represents clients across Orange County, with selected matters accepted in Los Angeles County and elsewhere in California.

All areas served →
Consultation

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Contacting the firm through this website, by telephone, or by email does not create an attorney-client relationship. Representation begins only after conflict clearance and execution of a written engagement agreement.