Applicants for Massachusetts Judicial Offices undergo a rigorous selection process, with a number of requirements. The three bodies involved in selecting a judge include: the Joint Bar Committee on Judicial Appointments, the Judicial Nomination Commission, and the Executive, or Governor's Council.
The following MBA publication gives a detailed review for those interested in the process:
A Guide to the Massachusetts Judicial Selection Process, 2nd edition, by Attorney Martin W. Healy.