Steven J. Pacini

Steven J. Pacini represents companies in complex commercial disputes, product liability, and mass tort disputes with enterprise-level stakes.

Steven combines relentless advocacy with practical creativity to resolve disputes that threaten key transactions, products, and business relationships. 

He regularly advised emerging and growth-stage companies in the life sciences, healthcare, and technology sectors on risk mitigation, crisis response, and strategic litigation related to enterprise defining transactions and business relations. He also has deep experience defending medical device, pharmaceutical, and consumer products manufactures in high-stakes litigation, including nationwide class actions and coordinated state and federal proceedings. 

Steven delivers efficient, business-minded solutions across the full dispute lifecycle—from preventive counseling and crisis management through trial, arbitration, and appeal—on both the plaintiff and defense sides.

He is particularly experienced in:

• M&A, venture, and private equity disputes  
• Earnout, milestone, and post-closing purchase-price adjustment litigation  
• Insurance recovery and indemnification claims  
• Trade secret, non-compete, and business tort litigation 
• Mass tort and product liability defense
• Class actions and consumer protection claims

Steven has served as lead counsel in arbitrations and as trial counsel in high-value product liability and commercial disputes, achieving favorable results through decisive judgments, motion practice, and strategic settlement positioning. 

He works closely with founders, executives, and boards to identify and mitigate potential areas of conflict before they escalate, delivering actionable, business-minded solutions at startup speed.

Steven serves on the board of the Youth Advocacy Foundation and handles juvenile cases pro bono for the Committee for Public Counsel Services in Massachusetts.