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David H. Arntsen- Partner

David H. Arntsen

Mr. Arntsen's practice involves all aspects of civil litigation with a concentration on Section 1983 Municipal Civil Rights actions in Federal and State Courts involving claims of Employment Discrimination (State and Federal Law), Land Use, First Amendment Speech and Religion, Education, and Police actions. Additionally, Dave has orchestrated the successful resolution through mediation of class action Section 8 and similar Discriminatory Housing cases culminating in the preparation of consent decrees and complex settlement agreements.

In addition to his municipal litigation practice, Dave has extensive experience litigating cases from inception to trial involving claims of negligence in the areas of auto, premises, construction and products liability. He has handled products liability cases in federal and state courts involving power and hand tools, machinery, tires and rims, overhead doors, escalators and motor vehicles, and has represented scaffolding concerns, municipalities and contractors in construction cases involving catastrophic injury and wrongful death. Dave has also represented a major New Jersey Hotel concern in several injury cases in the New York metro area.

Dave is a 1987 graduate of the University of Massachusetts, Amherst and received his J.D. in 1990 from St John’s University School of Law, where he participated in the Civil Trial Institute. He is admitted to practice in all four Federal District Courts within New York State, the Second Circuit Court of Appeals and the Supreme Court of the United States, as well as New York State Courts, and has handled cases at both the trial and appellate levels. He co-authored a paper on the subject of spoliation of evidence in the age of electronic discovery which he presented before the Association of Defense Trial Attorneys at their 2004 meeting in Dublin, Ireland.

Dave, his wife Doreen and their children live in Manorville, New York. He has served on the Eastport/South Manor Central School District Legislative and Audit Committees. Mr. Arntsen is also an accomplished musician and songwriter who performs locally and has had compositions utilized by Internet businesses on their websites.


Areas of Practice:

  • 80% Civil Rights Defense
  • 10% Premises Liability
  • 10% Products Liability

Litigation Percentage:

  • 100% of Practice Devoted to Litigation

Bar Admissions:

  • Supreme Court of the United States, 2002
  • 2d Circuit Court of Appeals, 2009
  • U.S. District Court Southern District of New York, 1991
  • U.S. District Court Eastern District of New York, 1991
  • U.S. District Court Western District of New York, 1992
  • U.S. District Court Northern District of New York, 1996
  • New York State Courts, 1991

Representative Cases:

  • Konrad v Epley 586 Fed Appx 72 (2nd Cir. 2014)

  • Nenninger v. Village of Port Jefferson 509 Fed. Appx. 36, 2013 WL 323004 (2nd Cir. 2013);

  • G.I. Home Developing Corp. v. Weis 499 Fed. Appx. 87, 2012 WL 4679331 (2nd Cir. 2012);

  • DeFabio v East Hampton Union Free School District, 623 F3d 71(2nd Cir. 2010);

  • Morpurgo v Incorporated Village of Sag Harbor, 417 Fed. Appx. 96 (2nd Cir. 2011);

  • 545 Halsey Lane v Town of Southampton 2014 WL 4629087 (E.D.N.Y. 2014);

  • Wolf v Town of Southampton 2013 WL 4679672 (E.D.N.Y. 2013);

  • Genovese v. Town of Southampton 921 F.Supp.2d 8 (E.D.N.Y. 2013);

  • Baumgarten v Suffolk County 2013 WL 3973089 (E.D.N.Y. 2013);

  • Catcove Corp. v Heaney, et al 685 F. Supp.2d 328, 2010 WL 604678 (E.D.N.Y. 2010);

  • Homefront Org. v Motz 570 F. Supp.2d 398 ( E.D.N.Y. 2008);

  • O’Keefe v Arbon Equipment Corp 399 F.Supp.2d 478 (S.D.N.Y. 2005);

  • Schurr v Port Authority of New York and New Jersey 307 AD2d 837, 763 NYS2d 304 (1st Dept. 2003);

  • DiMauro v Trump’s Castle Associates 300 AD2d 432, 750 NYS2d 883 (2d Dept. 2002);

Professional Associations and Memberships:

  • Federal Bar Council
  • Suffolk County Bar Association

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