What does your lease say?

You could argue that it was misrepresented and agree to terminate the lease, if you don't want to live there. If you like it otherwise, tell them you'll buy a new washer and dryer and deduct it from the rent. As for the AC, not much you can do about that. Maybe ask for another reduction, but if they said it's already reduced then that's not likely.

I'm not aware of any specific provision in Massachusetts regarding misrepresentation of housing. It's probably just covered by regular contract law.

More resources: https://www.cambridgema.gov/cdd/housing/forrenters