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.

• 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:

• 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: 415.287.2744 TF: 800.826.3505 F: 949.260.3190 Office Managing Partner: Ian R. Feldman

• Houston

  Texas 77019

  2929 Allen Parkway

  American General Center, Suite 200

  Houston, Texas 77019

  T: 346.229.4612 TF: 800.826.3505 F: 312.606.7777 Office Managing Partner: Ramy P. Elmasri

• Dallas

  Texas 75201

  325 N. Saint Paul Street

  Suite 3100

  Dallas, Texas 75201

  T: 469.942.8635 TF: 800.826.3505 F: 312.606.7777 Office Managing Partner: Ramy P. Elmasri

• Boca Raton

  Florida 33434

  7777 Glades Road

  Suite 405

  Boca Raton, Florida 33434

  T: 561.765.5305 TF: 800.826.3505 F: 312.606.7777 Office Managing Partner: Dennis D. Fitzpatrick