Fighting For Boston Families For More Than A Decade

Mark Cashman

Mark A. Cashman

Attorney Mark Cashman represents victims of medical negligence, dangerous and defective products, landlord negligence, and motor vehicle collisions. He is licensed to practice in Massachusetts and Rhode Island. 

He has a great deal of experience handling sensitive and complex medical malpractice and personal injury cases over the course of his career. Of note, he has helped secure significant results including a $3.5 million settlement for a botched surgery, $2.8 million verdict for a delay in diagnosis of prostate cancer, $1 million settlement for the failure to recognize and treat retinal detachment leading to blindness, and a $900k settlement for the delay in diagnosis of breast cancer.  Mark also helped secure a $6.1 million settlement for the family of a college student killed by a drunk driver.

Prior to joining Sweeney Merrigan, Mark worked for two prominent Boston law firms, Federal Judge Marianne B. Bowler, and the U.S. Attorney’s Office in Boston.

Mark is a graduate of Suffolk University Law School (J.D.) and Boston College (B.A.). While in law school, he was recognized as the Best Oral Advocate in his legal practice skills section and was chosen for the Constitutional Law Moot Court Team. He was later selected as an editor of the Moot Court Honor Board and Journal of Trial & Appellate Advocacy. After working as a staff editor for one year, he was elected by his peers to serve as President.

He is an active member of the Massachusetts Bar Association and the Massachusetts Academy of Trial Attorneys (MATA). He was honored in 2013 to be presented with the President’s Award from MATA for his commitment to advocating for victims’ rights.

Areas of Practice in Boston, Massachusetts:

Professional Associations and Memberships:

  • Massachusetts Academy of Trial Attorneys
  • Massachusetts Bar Association, Member


  • Suffolk University Law School, Boston, Massachusetts
  • Boston College, Chestnut Hill, Massachusetts

Bar Admissions:

  • Massachusetts
  • Rhode Island

Awards and Honors:

  • 2021 Rising Star, Super Lawyers
  • 2020 Rising Star, Super Lawyers
  • 2019 Rising Star, Super Lawyers
  • 2013 President’s Award, Massachusetts Academy of Trial Lawyers

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