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Darren C. Barreiro
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With broad-based knowledge gained through over 25 years of practice, Darren is a trial lawyer who represents individuals and business clients in complex commercial litigation. As a leader of the firm’s litigation practice, his experience encompasses cases involving partnership and minority shareholder disputes, non-compete agreements and restrictive covenants, breach of fiduciary duty, and claims related to unfair competition and trade secret issues. Darren has additional expertise in construction, employment, real estate, estate and condominium litigation, including claims brought under New Jersey’s Consumer Fraud Act, construction defect cases, and lawsuits seeking monetary damages and specific performance. 

Regardless of the nature of the dispute, Darren provides practical guidance and places a strong focus on helping his clients manage their legal obligations and understand their responsibilities to partners and shareholders, external vendors, and the public to avoid liability and claims whenever possible.

Darren is certified by the Supreme Court of New Jersey as a Civil Trial Attorney. He strives to provide efficient, effective and zealous advocacy that advances his clients’ business and personal interests and objectives via settlement, trial or other methods of dispute resolution. He represents clients across a wide spectrum of industry sectors, including commercial real estate, financial and mortgage lending, transportation, food and beverage, technology, healthcare, environmental, and professional services. 

Results may vary depending on your particular facts and legal circumstances.

Bar Admissions

  • New Jersey, 1999
  • U.S. District Court, District of New Jersey, 1999
Certified by the Supreme Court of New Jersey as a Matrimonial Law Attorney

Education

  • Rutgers University School of Law-Newark, J.D., 1998
  • Rutgers University, B.A., 1993

Recognition

  • Listed in The Best Lawyers in America (a trademark of Woodward/White, Inc.) in the Commercial Litigation practice area (2025-present)
  • Listed in New Jersey Super Lawyers (a Thomson Reuters business) in the Civil Litigation: Defense practice area (2021 - present)
  • Martindale-Hubbell Peer Review Rated AV Preeminent (a trademark of Internet Brands, Inc.)
  • Listed in Super Lawyers - New Jersey Rising Stars (a Thomson Reuters business) in the Civil Litigation: Defense, Construction Litigation: Business, Business Litigation, Professional Liability: Defense, Employment Litigation: Defense, and Consumer Law practice areas (2010, 2011)

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Please visit our Award Methodology page for a description of the standard or methodology on which these accolades are based. Attorney Advertising: No aspect of this advertisement has been approved by the Supreme Court of New Jersey.

Clerkships

  • Former law clerk to The Honorable Jack L. Lintner, Superior Court of New Jersey, Chancery Division, Middlesex County (1998-1999)

Representative Matters

  • Representing a nationwide equipment distributor in multi-jurisdictional successor-liability litigation involving alleged exposure exceeding $150M, defending claims that the client assumed liabilities of a separate company through intellectual property licensing arrangements. The matters include actions in New Jersey and California federal courts, with motions to dismiss pending, as well as representation of a company principal in a related Chapter 11 bankruptcy proceeding in New Jersey.
  • Serving as long-standing New Jersey litigation counsel to Massage Envy Franchising, LLC, defending the national franchisor in multiple matters alleging assault by individuals at local franchise locations. Successfully obtained summary judgment dismissing claims on the grounds that the franchisor is not liable for alleged misconduct of franchisee employees acting outside the scope of employment; currently defending that ruling on appeal while managing additional matters in discovery.
  • Obtained a complete defense verdict following a full trial in Essex County Superior Court, defeating claims for tortious interference and breach of loyalty against a business accused of hiring a salesperson who allegedly misappropriated confidential pricing information.
  • Successfully secured summary judgment in New Jersey Superior Court on behalf of an accountant accused of defamation, civil conspiracy, tortious interference, and emotional distress, arising from his audit of an international company that uncovered alleged financial misconduct. The firm’s representation resulted in all claims against the accountant being dismissed.
  • Represented a former PSE&G project manager in whistleblower and discrimination claims under New Jersey’s CEPA and LAD, alleging retaliation for reporting environmental violations involving contaminated wastewater. On appeal, the New Jersey Appellate Division reversed the trial court’s dismissal and order compelling arbitration and remanded the matter for proper consideration, reviving the client’s claims and restoring his right to judicial review.
  • Representing a major property company and its affiliates in a series of Consumer Fraud Act and construction-defect lawsuits arising from the development and sale of luxury condominium units along Jersey City’s Hudson River “Gold Coast.” The matters involve claims under the New Jersey Consumer Fraud Act, Planned Real Estate Development Full Disclosure Act, and related tort and contract theories, including alleged construction defects, loss of New York City views, and unit size disputes. Several cases have been tried to verdict and others resolved through settlement; current litigation involves claims by 19 plaintiffs alleging unit size discrepancies.
  • Resolved a malpractice action against an accountant asserting over $1.5 million in damages through a favorable settlement on the first day of trial and separately settled a related fraud action in New York Supreme Court after three days of trial.

 

Memberships

  • New Jersey State Bar Association: Equity Jurisprudence Committee
  • Trial Attorneys of New Jersey
  • Association of the Federal Bar of New Jersey
  • Middlesex County Bar Association
  • Founder and member, Bridges Network Group

In an evolving market where factors including remote work and digital data have shifted the rules of competition, safeguarding your company's proprietary assets is more critical than ever. Greenbaum litigators Darren Barreiro and Joe Natale discuss the strategic enforcement of restrictive covenants and the importance of acting swiftly to protect your business from threats such as unfair competition and trade secret misappropriation.

Of Interest