Commercial Litigation & Corporate Governance Attorney
Andrew Lieb, MPH, Esq.
Founder & Managing Partner of Lieb at Law, P.C.
Andrew Lieb is the Founder and Managing Partner of Lieb at Law, P.C., a boutique litigation firm handling complex business disputes, commercial litigation, corporate governance litigation, real estate disputes, employment litigation, discrimination claims, sexual harassment matters, and regulatory disputes. Since founding the firm in 2008, Mr. Lieb has built a litigation practice focused on disputes that impact business ownership, control, leverage, risk, and enterprise value.
Mr. Lieb’s core practice focuses on commercial litigation and business disputes, including breach of contract, breach of fiduciary duty, shareholder disputes, partnership disputes, derivative actions, business divorce, fraud, misrepresentation, restrictive covenants, unfair competition, and ownership conflicts. He is frequently retained when a business dispute threatens control, valuation, operations, or the future of a company.
His corporate governance litigation work includes disputes involving minority shareholder oppression, self-dealing, usurpation of corporate opportunities, enforcement of operating agreements, shareholder agreements, buy-sell provisions, ownership claims, fiduciary duties, and conflicts among owners, boards, managers, executives, and investors.
In addition to his business litigation focus, Mr. Lieb has significant experience in real estate brokerage litigation, including commission disputes, brokerage compliance, Department of State investigations, license law claims, ethics complaints, advertising issues, and regulatory enforcement matters. He also oversees firm-wide litigation strategy across real estate litigation, employment law, discrimination and civil rights, sexual harassment, whistleblower law, and AI compliance and litigation.
Commercial Litigation & Governance Focus
- Shareholder, member, and partnership disputes
- Corporate governance litigation and board-level conflicts
- Derivative actions for breach of fiduciary duty
- Business divorce and ownership exit disputes
- Complex contract disputes and enforcement
- Fraud, misrepresentation, and unfair competition claims
- Restrictive covenant and non-compete litigation
- Real estate brokerage and commission disputes
Mr. Lieb approaches litigation as a business tool. Every move is designed to create leverage, control risk, preserve value where possible, and position clients for the strongest available outcome, whether through resolution, arbitration, motion practice, or trial.
When Business Disputes Start Informally
Many of the most complex commercial litigation and employment disputes do not begin with formal contracts or legal planning. They start with handshake deals, text messages, emails, or agreements that were never fully documented or updated as the business evolved.
Mr. Lieb regularly represents businesses, owners, executives, and real estate professionals in disputes that grow out of these informal arrangements, including unclear ownership structures, incomplete agreements, outdated policies, and business practices that no longer align with legal requirements.
These cases often involve high-stakes issues such as control of a company, allocation of profits, commission disputes, employee claims, regulatory investigations, and allegations of breach of contract or fiduciary duty. By the time litigation arises, the underlying issue is rarely simple—the risk has already compounded.
Mr. Lieb’s practice focuses on stepping into these situations, identifying the legal exposure, and developing a strategy to protect the client’s position while navigating the realities of how the business actually operated.
Education, Teaching & Legal Training
Mr. Lieb is the Founder of Lieb School, a New York State–licensed real estate education provider offering continuing education courses to real estate brokers and salespersons. Through Lieb School, he has educated tens of thousands of real estate professionals on fair housing, discrimination, sexual harassment prevention, agency law, brokerage compliance, and risk management.
In addition to his real estate education work, Mr. Lieb teaches continuing legal education to attorneys nationwide. His legal education programs cover litigation strategy, business disputes, employment discrimination, real estate brokerage law, corporate risk, and emerging issues affecting companies, professionals, and licensed industries.
Mr. Lieb has served as an expert witness in real estate brokerage disputes and previously held leadership positions including serving on the New York State Bar Association’s Diversity and Inclusion Committee and co-chairing the Suffolk County Bar Association’s Real Property Committee.
Admissions
Mr. Lieb is admitted to practice law in New York, Connecticut, and Colorado, and in the Federal Courts for the Southern District of New York and Eastern District of New York.
Recognition, Media & Publications
In 2025, Mr. Lieb was honored as a Leaders in Law Honoree by Long Island Business News for his influence in both the legal profession and business community. He has also been recognized by Super Lawyers for his excellence in litigation.
Mr. Lieb is a frequent legal analyst and commentator appearing on MSNBC, Newsmax, LiveNOW from FOX, Scripps News, NBC, PIX, CBS, ABC, NewsNation, and Court TV. His radio commentary has been featured on 1010 WINS, CBS Radio, NPR, KOA, KTRH, WFAN, Long Island News Radio, and WRCN.
He is the author of 10 Strategies to Purchase Property Post-Pandemic: The Ultimate Guide to Real Estate Investing, and has contributed to or been featured in publications including the New York Real Estate Journal, American Bar Association Journal of Real Estate Litigation and Condemnation, LAW.COM, Huffington Post, The New York Times, The Washington Post, Business Insider, Newsweek, Curbed, The Real Deal, New York Post, USA Today, Law360, Washington Examiner, and Bloomberg.
Court & Arbitration Appearances
Mr. Lieb regularly appears before state, federal, and administrative tribunals including: EDNY, SDNY, New York Supreme Court, Connecticut Superior Court, CHRO, CCHR, NYSDHR, SCDHR, NYDOS, LIBOR, REBNY, NYSAR, NAM, JAMS, and New Era ADR.
Outside the Office
When not litigating or teaching, Mr. Lieb enjoys snowboarding, water skiing, and tennis.
Contact Lieb at Law, P.C.
For commercial litigation, corporate governance disputes, real estate brokerage litigation, employment disputes, discrimination claims, or other litigation matters, contact Lieb at Law, P.C.