Sweeney Merrigan Law LLP Sweeney Merrigan Law LLP At Sweeney Merrigan Law in Boston, you get two generations of experience in the field of personal injury law. Brothers Peter and Tucker Merrigan, along with their father Thomas, comprise Sweeney Merrigan Law and will use their knowledge to maximize your claim. Whether you have been injured negligently in an accident or need assistance acquiring fair workers' compensation benefits, contact their office today for a free consultation and get back on the road to recovery.