I would try Vickey's recommended route and get after the listing agent. If that doesn't work, you could try the building department in Scituate, and if they get enought flack, they will go after B of A on your behalf. If you wanted to be really agressive, you could mention calling the building department to the listing agent.
My advise would be to give the listing agent, (on the yard sign) a call and ask that he/she please have
that done. If it has not been listed as of yet it is likely that it will not happen for a while, unfortunately.
Hopefully it will sell quickly.