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Business and Commercial Law

New York City Business Litigation Law Firm

Breach of Contract

Mr. Lambros obtained an LL.M. in trade regulation from New York University. With such credentials, Attorney Lambros has successfully represented both plaintiffs and defendants in breach of contract cases, franchise agreement matters, and vendor agreements. He has also been able to achieve good results for his clients in securities fraud and insider trading cases. He was able to obtain dismissal of a major insider trading case against one of his clients. He obtained a large compensatory and punitive damages award against the opposing party on behalf of another client for fraud and deceptive practices. Much of the foregoing has been on behalf of international companies, particularly those from the European Union, that engage in business in the United States. For assistance with business litigation matters, small or large, local or international, contact a skilled business litigation attorney at the Law Office of John M. Lambros.

Consumer Protection

Attorney Lambros has brought a number of cases under the New York consumer protection law (General Business Law 349) and recovered substantial settlements on his clients’ behalf in consumer fraud matters. He has also successfully represented litigants regarding deceptive business practices, breach of warranty, securities fraud, and insider trading.


Mr. Lambros represents plaintiffs and defendants in libel and slander actions, which has included the representation of major international companies being sued in United States courts. Attorney Lambros also represents multi-national clients in Lanham Act matters regarding trademark infringement, as well as litigating false advertising claims and patent infringement matters.

Antitrust and Trade Regulation

He has been involved in major litigation regarding antitrust matters, including attendance at the United States Senate committee hearings regarding the Microsoft antitrust case. He also represented a major industry participant in the Microsoft litigation. Mr. Lambros has drafted numerous retail price maintenance and minimum advertised price programs for various clients.

New York City Law Offices of John M. Lambros serves clientele in a wide geographical area throughout NYC, including Manhattan, Queens, the Bronx, Brooklyn, Staten Island, Long Island, the Financial District, Civic Center, the Upper West Side, West Village, East Village, Greenwich Village, Tribeca, Melrose, Midtown and Manhattan Valley, in New York County, Bronx County, Queens County, Kings County, Nassau County and Suffolk County.

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