Michael J. Weiner


Michael J. Weiner

  • Georgetown University Law Center — LL.M. in International and Comparative
    Law, with Distinction
  • University of Wisconsin Law School — J.D.
  • Occidental College — B.A., English, Magna Cum Laude with Honors
  • New York
  • New Jersey
  • Federal: Southern District of New York, Eastern District of New York,
    District of New Jersey, 2d Circuit Court of Appeals

Represented seller of business in a hearing before an arbitration tribunal in a
$10M dispute arising out of alleged breaches of warranties in a merger
Advocated in a multi-million-dollar insurance coverage action against
insurance carrier and third-party administrator arising out of multiple
disclaimers of coverage
Represented a former executive of a hedge fund against allegations that she
was knowledgeable or complicit in the alleged misappropriation of
proprietary trading algorithms
Represented departing partner of an institutional law firm in an action for
common law exoneration and a quia timet injunction relating to individual
guarantees for the firm’s debt
First-chaired a six-week jury trial in the Commercial Division, resulting in a
verdict of no liability against the client for tortious interference with
prospective economic advantage
Successfully obtained a temporary restraining order and preliminary
injunction in favor of commercial landowner, prohibiting neighboring
occupants’ blocking egress from their parcels

Moderator and Panelist, Legal Issues Confronting Small Businesses and
Entrepreneurs, 2023 Business Convening, Sunnyside Shines BID, Queens, NY,
May 31, 2023

  • English

Michael J. Weiner litigates business disputes. Over the past twenty-seven years, Mr. Weiner has handled all stages of civil trials, hearings, and appeals.  He deploys his extensive know-how and experience to serve his clients’ business objectives, having tried multimillion-dollar cases to disposition, argued appeals in previously unresolved areas of the law, and settled hundreds of cases on favorable terms. The breadth of the cases Mr. Weiner handles is as expansive as the needs of the business enterprises that he represents. He has advocated in disputes among shareholders and business partners, including derivative suits and proceeding for involuntary dissolution; commercial landlord and tenant matters; breach of contract cases, including conflicts regarding non-compete, non-disclosure and non-solicitation agreements; insurance coverage and bad faith contests; unfair competition suits; and commercial tort actions.

Mr. Weiner graduated from the University of Wisconsin Law School and received his LL.M in International and Comparative law, with distinction, from Georgetown University Law Center. Prior to law school, he graduated, magna cum laude with honors, from Occidental College with a B.A. in English.

He is a member of the board of directors of the LGBT Bar Association of Greater New York (“LeGaL”), where he presently serves as Co-Chair of LeGaL’s Judiciary Committee.  In 2015, LeGaL recognized Mike with an award for his outstanding pro bono service at its Newark, New Jersey walk-in clinic.

Mr. Weiner has also served as a Delegate to several independent judicial screening panels in New York and Bronx Counties and as the Administrator of the 2022 New York City Democratic Committee’s Supreme Court Independent Screening Panel.  In addition, he is a member of the New York Path to the Bench Working Group of the American Constitution Society.

Frequently called upon to lecture on business law, the judicial selection process, and advocacy, Mr. Weiner has taught as an adjunct professor of legal writing at Brooklyn Law School.