Frequently Asked Questions:
Q. Can I get a copy of my adoption papers?
Adoption records in Massachusetts are sealed, "closed", for a period of 100 years. For more information read General Laws of Massachusetts, Chapter 210: Adoption of Children and Change of Name.
The link referred to (Chapter 210) is here:
http://www.mass.gov/legis/laws/mgl/gl-210-toc.htm