In MA you can encapsulate lead but you can not sand it, scrape it, or remove it in any way shape or form unless you are certified or licensed. Most of the major laws are still the same, some things have changed, look it up on the state website. I can pm you a lead inspector phone number you can call him and ask him questions. Don't be afraid to make a call he wont come track you down, this guy is really cool and like to help more than bust contractors.
Dave's not here man!