3 Best Business Lawyers in Ontario, CA

Expert-recommended Top 3 Business Lawyers in Ontario, California. All of our business attorneys actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

5+ YEARS IN TBR
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VALIANT LAW

800 Ferrari Lane, Suite 100,
Ontario, CA 91764 Directions

Since 2004

Practice Areas:

Structuring Businesses to Limit Liability Business Formation Corporation Formation Limited Liability Company (LLC) Formation Partnership Formation Sole Proprietorship Formation Business Entity Selection State Registration Business Permits and Licenses Organizational Documents Business Tax Structure Planning Contract Drafting Contract Review Contract Negotiation Employment Agreements Vendor Contracts Corporate Counsel Services Outside General Counsel Corporate Compliance Business Risk Management Business Legal Advice Proposing Operational and Financial Strategies Handling Licensing Issues Resolving Contract Disputes

"Valiant Law serves clients nationwide from their California and New York law offices. Their award-winning team has decades of combined experience standing up for the legal rights of everyday employees across the US. The experienced legal team at Valiant Law comprises aggressive and dedicated litigators committed to seeking the compensation and fair treatment their clients deserve. They are licensed in the most prestigious courts in the nation, including the United States Supreme Court, the Supreme Court of California, the 9th Circuit Court of Appeals, and all State and Federal Courts in California and Nevada. Their legal team has over a decade of trial experience handling a variety of business litigation issues, including those that involve real estate, contract disputes, licensing, and business torts. If you have questions or concerns about the state of your business, please don’t hesitate to call their office. Valiant Law assists their clients with resolving various legal business matters, including structuring businesses to limit liability in the event of a lawsuit by completing permit applications and insurance policies.

2026 Highlights: Their lawyers speak English, Spanish, Farsi, Armenian, Hindi, and Urdu. Call them today for free consultations."

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Contact:

(909) 254-5771 (909) 677-2270

Mon-Fri: 8am - 6pm
Sat & Sun: Closed

TBR® Inspection Report:

Robert John Spitz - Ontario, CA Business Lawyers - Lawyer Portrait Image
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8+ YEARS IN TBR
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ROBERT JOHN SPITZ

LAW OFFICE OF ROBERT J. SPITZ
204 North San Antonio Avenue,
Ontario, CA 91762 Directions

Since 1975

Practice Areas:

Breach of Contract Business Formation and Organization Business Litigation Contract Matters and Intellectual Property Rights Including Patents and Trademarks Unfair Business Practices

"Robert John Spitz is the founder of the Law Office of Robert J. Spitz. He obtained his JD from the University of Southern California. Robert is a member of the State Bar of California, the Supreme Court of the United States, the U.S. District Courts, and the Central and Southern Districts of California. He is also a member of the American Bar Association. He brings 50 years of experience to individuals and small businesses throughout the Inland Empire. Robert can help you plan and conduct your day-to-day business operations to prevent employment issues. He will carefully review all the details of your legal situation, identify potential problems, and propose effective solutions to assist you in resolving your legal matter as efficiently as possible. Whether you need assistance with business formation, drafting, negotiating, reviewing business contracts, or are involved in complex business litigation, he has the experience and skills to help you resolve your issues.

2026 Highlights: You can book your consultation today."

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License #67643

Contact:

(909) 395-0909

Mon-Fri: 9am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

Thomas Salazar Carter - Ontario, CA Business Lawyers - Lawyer Portrait Image
Thomas Salazar Carter - Ontario, CA Business Lawyers - Law Firm Exterior Image
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6+ YEARS IN TBR
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THOMAS SALAZAR CARTER

THE LAW OFFICES OF THOMAS S. CARTER
333 North Indian Hill Boulevard, Claremont,
Ontario, CA 91711 Directions

Since 2008

Practice Areas:

General Business Disputes Business Torts Breach of Contract Business Ownership Disputes General Business Transactions Business Contracts and Business Formation Franchise Representation

"Thomas Salazar Carter is the founder of The Law Offices of Thomas Salazar Carter. His law office is located in Claremont (7.0 miles) from downtown Ontario. He completed his JD degree from Thomas Jefferson School of Law. He is admitted to practice before the California State Bar, Washington State Bar, and the District of Columbia. Thomas focuses on creating effective resolutions for his clients' legal challenges and provides small to mid-sized companies, industries, professionals, institutions, startups, partnerships, franchises, manufacturers, warehousing/distribution, transportation, and more with experienced and determined legal business representation. He and his team deliver on doing their due diligence for their clients, from mergers and acquisitions to buyouts and regulatory requirements. The Law Offices of Thomas Salazar Carter provide skilled representation and knowledgeable legal guidance for clients in a wide range of business matters. They offer a personal, straightforward approach to effectively resolving issues and advancing the interests of their clients.

2026 Highlights: Contact them to schedule a free consultation. He accepts cash, check, and credit card options are available."

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License #256876

Contact:

(909) 296-3360

Mon-Fri: 9am - 5pm
Sat & Sun: Closed

TBR® Inspection Report: