LEGALLY REVIEWED BY:
Callahan & Blaine
March 20, 2025

Complex Business Litigation Attorney in Fullerton, CA

Business disputes can be intricate, high-stakes, and financially devastating if not handled properly. Whether your company is facing a contract breach, partnership dispute, intellectual property infringement, or regulatory challenge, navigating complex business litigation requires skilled legal strategy and aggressive advocacy. 

At Callahan & Blaine, our experienced business litigation attorneys have a proven track record of representing corporations, entrepreneurs, and professionals in high-value, multifaceted disputes. We know the unique challenges businesses face and are committed to protecting your interests—whether through negotiation, arbitration, or litigation in state and federal courts. With a reputation for achieving landmark verdicts and settlements, our firm is prepared to handle your most challenging legal matters and secure the best possible outcome for your business.

How the Lawyers of Callahan & Blaine Can Help a Complex Business Litigation Case 

At Callahan & Blaine, we encourage our corporate and commercial litigation clients to look beyond the traditional labels of plaintiff and defendant. Many cases we handle involve complex legal dynamics, including counterclaims, cross-claims, and third-party actions. A straightforward contract dispute, for instance, may evolve into a larger case involving antitrust violations or fraud claims, potentially leading to significant financial recovery for our clients.

Our business litigation attorneys represent many clients, from Fortune 500 companies and national corporations to small businesses, professional organizations, homeowners associations, and entrepreneurs. Whether your company is a corporation, a limited liability company (LLC), or another business entity, our strategic approach to litigation ensures that we pursue every available legal avenue to fight for your interests. 

By combining top-tier trial advocacy with innovative dispute resolution strategies, we provide the advantage needed to prevail in corporate contract disputes, business tort claims, and high-stakes litigation. With a strong presence throughout California, our attorneys litigate in state and federal courts, administrative and regulatory tribunals, and appellate courts at every level.

Why Choose Callahan & Blaine for Your Business Litigation Case?

Since 1984, Callahan & Blaine has delivered exceptional results in civil litigation, securing favorable verdicts and settlements for our clients. We achieved the largest jury verdict in Orange County history—$934 million—demonstrating our ability to handle even the most complex and high-stakes cases.

For over 40 years, civil trial practice has been the foundation of our firm. With a team of over 29 accomplished trial attorneys, we ensure that every lawyer who joins our firm possesses outstanding litigation skills. Our attorneys play critical roles in navigating complex business disputes, providing the legal strength and strategic insight necessary to achieve success.

Types of Complex Business Litigation Cases We Handle 

We handle high-stakes and complex business litigation cases for corporations, small businesses, entrepreneurs, and professionals. Our legal team has extensive experience across a wide range of business disputes, ensuring that our clients receive aggressive representation tailored to their unique challenges. The following are the types of complex business litigation cases we handle:

Commercial, Banking, and Contract Litigation

Disputes arising from business contracts, financial transactions, and commercial agreements can have serious financial consequences. Whether dealing with breach of contract, fraud, misrepresentation, or banking violations, we protect our clients’ interests in commercial transactions and enforce contract terms through negotiation, arbitration, or litigation.

Corporate, Partnership, and Ownership Disputes

Internal conflicts between business partners, executives, or shareholders can threaten a company’s stability. We represent clients in partnership disputes, buyout disagreements, breach of fiduciary duty claims, and conflicts involving corporate governance. Our goal is to resolve these disputes efficiently while minimizing disruption to the business.

Shareholder Derivative Actions

Legal action may be necessary when corporate officers or directors act against the interests of a company and its shareholders. We assist shareholders in pursuing derivative claims for mismanagement, fraud, breach of fiduciary duty, and self-dealing to hold executives accountable and protect the integrity of the business.

Banking, Mortgage, and Lender Liability Claims

We represent businesses in disputes involving banks, mortgage lenders, and financial institutions, including cases related to predatory lending, fraudulent foreclosure practices, breach of loan agreements, and lender misconduct. Our firm has the knowledge and resources to challenge unfair banking practices and seek favorable outcomes for our clients.

Trade Secrets, Nondisclosure, and Unfair Competition Lawsuits

Protecting proprietary business information and maintaining a competitive edge is critical in today’s marketplace. We handle trade secret misappropriation, breaches of non-compete or nondisclosure agreements (NDAs), deceptive business practices, and unfair competition claims to safeguard our clients’ intellectual property and business interests.

Business Torts: Fraud, Antitrust Violations, and More

Business torts involve wrongful acts that cause financial harm to a company. We litigate cases involving fraud, tortious interference with contracts, unfair business practices, deceptive trade practices, defamation, and antitrust violations, ensuring that businesses are protected against unethical and illegal conduct.

Intellectual Property Claims

Intellectual property is a valuable asset a business owns. We represent clients in trademark, copyright, and patent disputes, licensing disagreements, trade dress infringement, and IP misappropriation cases to defend their creative and proprietary rights.

Employment Litigation

Employer-employee disputes can escalate quickly, leading to costly legal battles. We handle cases involving wrongful termination, discrimination, wage and hour disputes, breach of employment contracts, non-compete violations, and whistleblower retaliation claims to protect both employers and employees in complex workplace matters.

Class Action Litigation

When multiple plaintiffs suffer harm due to corporate misconduct, false advertising, or unfair business practices, a class action lawsuit may be the best course of action. We have successfully represented businesses in large-scale, high-stakes class action lawsuits, securing favorable outcomes for our clients.

Real Estate Litigation: Contract, Warranty, and Tort Claims

We handle various real estate disputes, including breaches of real estate contracts, commercial lease disputes, warranty claims, zoning issues, land use disputes, and real estate fraud. Our experience in both transactional and litigation matters ensures that our clients’ investments are safeguarded.

Construction Litigation

Construction projects often involve multiple parties, contracts, and potential legal conflicts. We represent property owners, developers, and suppliers in disputes over construction defects, contract breaches, delay claims, and payment disputes, ensuring that our clients’ interests are protected in high-value construction matters.

Speak With the Complex Business Litigation Lawyers at Callahan & Blaine Today 

At Callahan & Blaine, we leverage over 40 years of experience to tackle complex corporate and commercial litigation. Our seasoned attorneys have a proven track record of securing favorable verdicts, such as the $934 million jury award, the largest in Orange County history. We handle everything from contract disputes to intricate shareholder actions, employing a strategic and innovative approach to protect your business interests. With more than 700 years of combined trial experience, our team offers unparalleled legal expertise tailored to your unique needs.

You can trust us to aggressively pursue every legal avenue available in your case. Our attorneys are dedicated to delivering results and protecting your business’s reputation and financial well-being. Contact Callahan & Blaine today at (714) 241-4444 or through our contact form.

Logo

Legally reviewed by:
Callahan & Blaine
March 20, 2025

Callahan & Blaine, established in 1984, is a leading litigation firm with a legacy of delivering exceptional results for our clients. With over 700 years of combined trial experience and a proven track record of more than $1 billion in verdicts and settlements, our team of highly recognized attorneys specialize in handling complex and high-stakes civil cases with unparalleled efficiency and skill.

Recent Business Litigation Insights
Related Firm News

*CV, BV, and AV are registered certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards, and policies. Martindale-Hubbell is the facilitator of a peer review rating process. Ratings reflect the confidential opinions of members of the Bar and the judiciary. Martindale-Hubbell ratings fall into two categories — legal ability and general ethical standards.

CONTACT

Discussion of Potential Case

Fill out the form regarding your potential case.

This field is for validation purposes and should be left unchanged.