John Siegal


New York
T +1.212.589.4245
F +1.212.589.4201


John Siegal is an accomplished trial and appellate lawyer in federal and state courts in New York and across the nation. He advises, litigates and arbitrates primarily for financial services, media and real estate industry clients in private business disputes and matters involving public agencies and controversies.

John has a 30-year track record of successful results for clients that includes extensive experience in the areas of fiduciary duties, business divorces, partnership disputes, contracts, financial fraud, trade secrets and noncompetes, government investigations and government contracts, Article 78 proceedings, real estate development and property management disputes, defamation, privacy and reporter’s privilege, false advertising, civil rights, class actions and other constitutional and business disputes.

John is co-leader of BakerHostetler's Restrictive Covenants team.


Commercial Litigation
  • Successfully tried and resolved many business divorces and valuation disputes in private equity and closely held corporation cases.
  • Representing government transportation authority in commercial fraud and contract matters seeking to recover monies owed to pension funds and benefit plans.
  • Persuaded the United States Court of Appeals for the Circuit to reinstate a developer’s case against its lender due to the bank’s participation in setting fraudulent LIBOR interest rates.
  • As part of BakerHostetler’s role as court-appointed counsel to the Securities Investor Protection Act Trustee for the liquidation of Bernard L. Madoff Investment Securities LLC, served as lead attorney from 2009 to 2012 in Picard v. Madoff et al.
Real Estate
  • Representing owners of moderate-income housing properties in class action litigations, government regulatory investigations, commercial disputes and public policy matters.
  • Tried to a jury verdict a claim by a condominium owner that the building’s board breached its duties in failing to timely and effectively remediate mold and other environmental hazards. The verdict was listed as the largest contract verdict of the year by the New York Law Journal.
  • Served as lead counsel in the outdoor advertising industry’s successful challenge to New York City’s attempt to apply its land use regulations to locations on state-owned railroad rights of way.
  • Successfully litigated over land use approvals for two different New York City stadium projects, once helping to obtain dismissal of challenges to the public approvals for a sports stadium and once, as lead counsel, annulling the award of a concession for construction of a stadium in a park.
Trade Secrets
  • Litigated dozens of trade secrets cases, often involving noncompetes and other restrictive covenants, in federal and state courts across the country for businesses in nearly every industry.
  • Founding Chair of New York City Bar Association Committee on Trade Secrets
  • Member of Sedona Conference Working Group on Trade Secrets
  • Has been published extensively on employment trade secret issues in the New York Law Journal, The National Law Journal, an academic law review and numerous industry publications and served as program chair and panelist for Practicing Law Institute seminars on trade secrets and restrictive covenants.
Media, First Amendment and Constitutional Litigation
  • Won an $18 million jury verdict in a three-week federal trial in May 2015 for a private equity executive in a civil rights case brought under 42 U.S.C. § 1983 for First Amendment retaliation by state pension fund officials.
  • Represented Mayor Bill de Blasio prior to inauguration in the Second Circuit’s 2013 review of the remedies order in Floyd v. City of New York concerning the New York Police Department’s stop-and-frisk practices.
  • Represented 123 NYPD sergeants who passed the lieutenant’s exam in successfully opposing an Article 78 due process petition seeking to enjoin their promotions due to allegations of test improprieties by others.
  • Represented documentary filmmakers Ken Burns, David McMahon and Sarah Burns in quashing a subpoena for outtakes of the film “The Central Park Five.” The City of New York sought the footage in a federal civil rights lawsuit filed by the subject of the film. The decision clarified and limited the scope of exceptions to the reporter’s privilege under Second Circuit case law.

Recognitions and Memberships


  • The Legal 500 United States (2019)
    • Recommended in Intellectual Property - Trade Secrets (litigation and non-contentious matters)
  • Brooklyn Bar Association's Volunteer Lawyers Project: Dedication to Justice Award (2017)
  • Chambers USA: Litigation: General Commercial in New York (2015 to 2016 & 2018 to 2019)
    • Recognized Practitioner (2015 to 2016 & 2018 to 2019)
  • New York Metro "Super Lawyer" (2006 to 2008, 2013 to 2019)

Prior Positions

  • Current appointee of Mayor Bill de Blasio to the New York City Civilian Complaint Review Board, the independent civilian board that hears civilian complaints of force, abuse, discourtesy and offensive conduct against members of the New York Police Department.
  • Commmissioner on the Mayor’s Charter Revision Commission that drafted amendments to New York City’s governing charter in the areas of campaign finance reform, civic engagement and neighborhood governance that were adopted by voters at the 2018 general election.
  • Served as general counsel and senior advisor to six citywide political campaigns.
  • Served in City Hall as Assistant and Chief Speechwriter to New York Mayor David N. Dinkins.
  • Started career out of college as a Capitol Hill Staff Aide to Sen. Charles E. Schumer (then in his first term in the House).


  • U.S. Supreme Court
  • U.S. Court of Appeals, Second Circuit
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Eastern District of New York
  • New York, 1987


  • J.D., New York University School of Law, 1987
  • B.A., Columbia University, Columbia College, 1981