Matthew T. Leis

Associate

Matthew Leis is an associate with Clausen Miller, P.C. in its professional liability department. His practice is focused primarily on the areas of casualty/liability defense, construction litigation, legal malpractice, employment law, real estate, premises liability, products liability, professional negligence and personal injury matters. These areas involve the defense of a variety of professionals in both the State and Federal Courts, including attorneys, business owners, accountants, real estate management companies, architects, engineers, contractors, developers, directors and officers. 

Mr. Leis is currently admitted to practice before New York State Courts as well as the U.S. District Courts of the Southern and Eastern Districts of New York. He is also a certified facilitative mediator, with experience mediating disputes in cases pending in the New York State Court system.

Prior to joining Clausen Miller P.C., Mr. Leis was a litigation associate with a national insurance defense law firm, where his practice also focused on defending claims against a variety of professionals. Mr. Leis began his legal career as an Assistant District Attorney in Kings County, New York, prosecuting misdemeanor and felony cases, and he has conducted many successful bench and jury trials.

Mr. Leis received his undergraduate Bachelor of Science Degree in Mechanical Engineering from Lafayette College, and worked as a design and manufacturing engineer before entering law school.  Mr. Leis received his Juris Doctorate from Hofstra University School of Law. His article, “South Africa’s Medicines and Related Substances Amendment Act of 1997 and the Agreement on Trade Related Aspects of Intellectual Property Rights” was published by the Journal of International Business & Law, and he later served as the Managing Editor of Production for that Journal.

Education

  • J.D. Hofstra University School of Law
  • B.S. Mechanical Engineering, Lafayette College

Bar Admissions

  • New York 
  • New Jersey

Court Admissions

  • New York State
  • U.S. District Court, Eastern and Southern Districts of New York