Walter A. Costello, Jr.

Top rated personal injury attorney in Salem, Massachusetts

Kazarosian Costello LLP
Walter A. Costello, Jr.
Kazarosian Costello LLP

Practice Areas: Personal injury, Medical malpractice, Business litigation; view more

Licensed in Massachusetts since: 1973

Education: Boston College Law School

Selected to Super Lawyers: 2006 - 2022

Kazarosian Costello LLP

10 Federal St
Suite 401
Salem, MA 01970 Visit website


Walter A. Costello Jr. is a personal injury attorney and a partner at the Salem-based firm Kazarosian Costello LLP in Massachusetts. He represents the people of Salem and takes on personal injury cases involving medical malpractice, nursing home liability, product liability, and motor vehicle accidents, and additionally does business litigation as well.

A licensed legal practitioner, Mr. Costello has been practicing law in Massachusetts for close to half a century. He advocates for his clients before federal, appellate and national courts, including the U.S. District Court for the District of Massachusetts, the United States Bankruptcy Court for the District of Massachusetts, the United States Court of Appeals for the 1st and the 5th Circuits and the Supreme Court of the U.S.

An undergraduate alumnus of Boston University, Mr. Costello graduated in 1969 obtaining his bachelor’s degree in economics. He earned his Juris Doctor from the Boston College Law School in 1973.

Rated AV Preeminent* through Martindale-Hubbell, Mr. Costello has received several other accolades from various other organizations. He was the recipient of the Centennial award in 2011 from the Massachusetts Bar Association and the Wiedemann Wysocki Citation of Excellence from the American Association for Justice. He is included in the Marquis Who’s Who Top Lawyers American Lawyers list. He is rated “Superb” on Avvo.

Mr. Costello’s contribution to the legal community doesn’t end with his daily litigation activities. He serves as a lecturer at the Massachusetts Continuing Legal Education and the Massachusetts Academy of Trial Attorneys and is an instructor at the North Shore Community College.

Previously a president at the Massachusetts Academy of Trial Attorneys, Mr. Costello has held numerous leadership positions in several organizations, including the Essex County Bar Association, the American Association for Justice and the Essex County Superior Court.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer-review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Ratings™ fall into two categories – legal ability and general ethical standards.

Practice areas

Personal injury - general: plaintiff, Personal injury - medical malpractice: plaintiff, Business litigation, Personal injury - products: plaintiff

Focus areas

Motor vehicle accidents, Personal injury - plaintiff, Slip and fall, Wrongful death, Construction accident, Brain injury, Trucking accidents, Premises liability - plaintiff, Medical malpractice, Birth injury, Delayed or incorrect diagnosis, Motor vehicle defects, Medical devices

  • 60% Personal injury - general: plaintiff
  • 20% Personal injury - medical malpractice: plaintiff
  • 10% Business litigation
  • 10% Personal injury - products: plaintiff

First Admitted: 1973, Massachusetts

Professional Webpage:

  • Super Lawyers, 2006 to Present
  • Centennial Award, 2011, Massachusetts Bar Association
  • Best Lawyers in America
  • Recipient, Who's Who American Lawyer
  • American Association for Justice, Wiedemann Wysocki Citation of Excellence, 1995 - 1996
Pro bono/Community Service:
  • Instructor, North Shore Community College
  • Board of Bar Overseers, Hearings Officer
  • Boston College Law School, Alumni Council
  • Town of Swampscott, Chairman, Board of Appeals
  • Town of Swampscott, Past Member, Board of Appeals
Scholarly Lectures/Writings:
  • Massachusetts Lawyers Weekly, Board of Editors
  • Lecturer, Massachusetts Continuing Legal Education
  • Lecturer, Massachusetts Academy of Trial Attorneys
Educational Background:
  • Boston University, Boston, Massachusetts, A.B. in Economics, 1969
Bar/Professional Activity:
  • Massachusetts, 1973
  • Salem Bar Association
  • Massachusetts Bar Association, Regional Delegate, 2008 – 2011
  • Massachusetts Bar Association, Member, Executive Management Board, 2008 – 2011
  • Massachusetts Bar Association, Member, 1990 – Present
  • American Association for Justice, Chair State Affairs Committee, 1994 – 1995
  • American Association for Justice, Chair Insurance Committee, 1991 – 1992
  • American Association for Justice, State Delegate, 1986 – 1990
  • American Association for Justice, Executive Committee, 1993
  • American Association for Justice, Chairman Counsel of Presidents, 1992 – 1993
  • American Association for Justice, Member, Board of Governors, 1997 – 2003
  • Essex County Superior Court, Arbitrator, 1994 – Present
  • Essex County Superior Court, Mediator, 1994 – Present
  • Essex County Bar Association, Conciliator, Essex County Superior Court, 1994 – Present
  • Essex County Bar Association, Treasurer, 1988 – 1990
  • Essex County Bar Association, Secretary, 1992 – 1994
  • Essex County Bar Association, Vice President, 1994 – 1996
  • Essex County Bar Association, President, 1996 – 1998
  • Massachusetts Academy of Trial Attorneys, Lifetime Member, Board of Governors
  • Massachusetts Academy of Trial Attorneys, President, 1990 – 1992
  • U.S. District Court District of Massachusetts, 1974
  • U.S. Bankruptcy Court Massachusetts, 1974
  • U.S. Court of Appeals 5th Circuit, 1975
  • U.S. Court of Appeals 1st Circuit, 1975
  • U.S. Supreme Court, 1994

Office location for Walter A. Costello, Jr.

10 Federal St
Suite 401
Salem, MA 01970

Phone: 978-791-3467


17 Years Super Lawyers
  • Super Lawyers: 2006 - 2022

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