Credentials And Ability You Can Trust


Fighting for victims of securities law violations and representing people in securities litigation and arbitration has been attorney Timothy J. Dennin‘s primary area of practice since 1990.

Our firm’s listing of successful case results reads like a who’s who of dethroned brokerage houses and corporations – with sizable awards and settlements against the likes of Tyco, Merrill Lynch, Goldman Sachs, Charles Schwab Inc., Oppenheimer & Co. Inc., Prudential Securities, MetLife and UBS Securities Inc. – along with court proceedings and FINRA arbitrations pending against those who have stolen people’s futures and dreams.

A Reputation For Success

Timothy J. Dennin is a lawyer whose work has been noticed among his peers. Timothy J. Dennin, P.C., is AV Preeminent peer review-rated* through Martindale-Hubbell.

Timothy J. Dennin earned his law degree from St. John’s University School of Law in 1983, and then served as an attorney in the Division of Enforcement for the Securities and Exchange Commission in Washington, D.C., and as an assistant district attorney in Nassau County, New York. That same dedication and commitment that he brought to the United States and local government offices has been invested in his private practice.

Mr. Dennin has advised investors in a broad spectrum of securities matters, including cases involving:

  • Negligent or fraudulent brokers (broker misconduct), or investment advisers and unsuitable investments
  • Securities litigation representation
  • Securities fraud class action
  • FINRA and other securities arbitration matters
  • Subprime investments
  • Hedge funds, collateralized debt obligations, limited partnerships, private placements, New York Stock Exchange and NASDAQ-traded securities
  • Advising publicly traded pharmacetical companies in evaluating risk and damage exposure in securities class action regarding an acquisition
  • Misrepresentation and omissions regarding the sale of closed-end funds to Puerto Rico investors
  • Ponzi scheme allegations
  • As well as other affairs concerning financial investments.

Integrating The Most Advanced Information Technology With Skilled Research

Our firm’s implementation of the industry’s most advanced computer research and securities tracking systems ensures pre-eminent research and preparation for its securities arbitration and litigation cases. We integrate our knowledge with the insight of experience to focus our attention on fact-intensive cases.

Tenacious, Ethical And Thoroughly Prepared

Our founding lawyer is known and respected for his tenacity, combined with integrity, that is evidenced in every aspect of his legal work, including in deposition, discovery and trial. These qualities together allow him to present a case that poses all vital facts, and responds with conviction and flexibility to opposing rebuttals.

“There is little that is as rewarding as holding to task people who should be held to task and helping those who have been wronged recoup their investments and see justice done.” Timothy J. Dennin

Personally Involved In Your Case

What makes Timothy J. Dennin, P.C., a superior law firm is our commitment to each individual client. Mr. Dennin is personally involved in all decisions, litigations and arbitrations. We are a sole practitioner firm, rather than a firm with an army of lawyers with a mountain of overhead costs. We have taken on armies of lawyers – and won for our clients.

Free Initial Consultations Nationwide

Has a broker, adviser or trusted investment house invested your hard-earned money in unsuitable investments or otherwise violated your trust and the law? Call our Northport and Manhattan law firm at 866-437-9475 to discuss your specific concerns with New York City and Suffolk County attorney Timothy J. Dennin today. Contact us online.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license 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 anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review RatingsTM fall into two categories – legal ability and general ethical standards.