Nexis Uni is a great place to start your research when looking for a specific legal case.
Click on the link below and use the search box to enter the citation or the party names, or a topic if you don't know specific cases.
You can also select "US Legal" > "Federal and State cases" from the menu. From this page select Massachusetts from the Jurisdiction drop-down menu and choose either citation or party names from the search menu.
On the library home page, go to databases to find Nexis Uni
To find legal cases and to understand what they mean, it helps to understand how case names and legal citations work.
For a quick introduction go to the center box of this guide from Walsh University.