William G. Cosmas - Arbitration profile photo

William G. Cosmas

Laredo & Smith, LLP • MA
ArbitrationBusiness LitigationInvestigationsProbateReal Estate

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Contact

Email
info@laredosmith.com
Phone
(617) 443-1100
Address
MA, 02110, US

Professional

About

William G. Cosmas is a distinguished attorney at Laredo & Smith, LLP, located in Boston, Massachusetts. With extensive experience in various areas of law, including Arbitration, Banking Litigation, and Business Litigation, William has established a reputation for excellence in the legal community. His practice also encompasses Construction Litigation, Real Estate Litigation, and White-Collar Criminal Defense, making him a versatile advocate for his clients. William’s expertise extends to Government Investigations and International Arbitration and Litigation, where he effectively navigates complex legal landscapes on behalf of clients both domestically and abroad. He serves as Local Counsel to Out-of-State Law Firms, providing invaluable insight and representation in Massachusetts. Additionally, his proficiency in Maritime and Admiralty Litigation and Probate Litigation allows him to address a wide array of legal challenges. William is known for his strategic approach, meticulous attention to detail, and commitment to achieving favorable outcomes for his clients. He is dedicated to providing exceptional legal services tailored to meet individual needs. A graduate of a prestigious law school, William is an active member of the Massachusetts Bar Association and continually engages in professional development to stay abreast of evolving legal trends. For legal representation that prioritizes client success, William G. Cosmas is the attorney to trust.

Credentials

Education
Boston College Law School, Boston, Massachusetts, 2007 | J.D. | Honors: Member, National Environmental Moot Court Team, 2007 | Honors: Grimes Moot Court Competition (Co-Chair, 2007; Top Ten Oralists, 2006) | Georgetown University, 2001 | A.B.

Recognition & Involvement

Awards
Rising Star Massachusetts Super Lawyers, Thomson Reuters
Publications
["From Here to Clemency: Navigating the Massachusetts Pardon Process, 59 Boston Bar J., Spring, 2015", "Practical Law Company's Statutes of Limitations: Massachusetts, 2015", "Co-author, MCLE's Massachusetts Superior Court Civil Practice Jury Instructions on Eminent Domain Cases, 2008, 2011, 2015"]
Updated: May 25, 2026