Matthew T. Leis

Partner

Primary Location: Florham Park, NJ

Secondary Location: New York, NY

Phone: 973.410.4141

Biography

Professional negligence defense involves very complicated factual issues in an ever evolving legal landscape. We work directly with our clients so that both attorney and client understand the benefits and risks of any legal strategy. Our success comes from obtaining the best possible resolution, and is determined by client satisfaction.

Matthew Leis is a partner with Clausen Miller, P.C. in its casualty and liability department. Matthew’s practice is primarily focused on the defense of other professionals, including attorneys, engineers, architects, developers, and brokers. Utilizing his engineering background, Matthew’s practice also involves claims of construction defect, premises liability, roadway construction, products liability, Labor Law, and general negligence.

Matthew is admitted to practice before New York and New Jersey 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 a variety of practice areas.

Prior to joining Clausen Miller P.C., Matthew was a litigation associate with a national insurance defense law firm, where his practice also focused on defending claims against other professionals. Prior to that, Matthew 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.

Matthew 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

  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Southern District of New York
  • U.S. District Court, District of New Jersey
  • Chicago

    Illinois 60603

    10 South LaSalle Street

    Chicago, Illinois 60603

    T: 312.855.1010 TF: 800.826.3505 F: 312.606.7777 Office Managing Partner: Dennis D. Fitzpatrick

  • New York

    New York 10005

    28 Liberty Street 39th Floor

    New York, New York 10005

    T: 212.805.3900 TF: 800.826.3505 F: 212.805.3939 Office Managing Partner: Carl M. Perri

  • Mission Viejo

    California 92691

    27285 Las Ramblas

    Suite 200

    Mission Viejo, California 92691

    T: 949.260.3100 TF: 800.826.3505 F: 949.260.3190 Office Managing Partner: Ian R. Feldman

  • Florham Park

    New Jersey 07932

    100 Campus Drive

    Florham Park, New Jersey 07932

    T: 973.410.4130 TF: 800.826.3505 F: 973.410.4169 Office Managing Partner: Carl M. Perri

  • Michigan City

    Indiana 46360

    200 Commerce Square

    Michigan City, Indiana 46360

    T: 219.262.6106 TF: 800.826.3505 F: 312.606.7777 Office Managing Partners: Paige M. Neel, Kimbley A. Kearney

  • Appleton

    Wisconsin 54914

    4650 W. Spencer Street

    Appleton, Wisconsin 54914

    T: 920.560.4658 TF: 800.826.3505 F: 920.968.4650 Office Managing Partner: Patrick L. Breen

  • Stamford

    Connecticut 06902

    68 Southfield Avenue

    2 Stamford Landing Suite 100

    Stamford, Connecticut 06902

    T: 203.921.0303 TF: 800.826.3505 F: 212.805.3939 Office Managing Partner: Matthew J. Van Dusen

  • Tampa

    Florida 33609

    4830 West Kennedy Boulevard, One Urban Center

    Suite 600

    Tampa, Florida 33609

    T: 813.509.2578 TF: 800.826.3505 F: 312.606.7777 Office Managing Partner: Dennis D. Fitzpatrick

  • San Francisco

    California 94111

    100 Pine Street

    Suite 1250

    San Francisco, California 94111

    T: 415.745.3598 TF: 800.826.3505 F: 949.260.3190 Office Managing Partner: Ian R. Feldman