Correct language in a 30 Day Notice to Quit - MA

[Adam Levy]

Hi all, 

I'm probably going to have to give a tenant their notice this week since it doesn't look like things are going to work out.  I want to make sure I get the language right.  

In case it matters, the specifics of this situation is that I bought the house last month and gave them a couple weeks to review the lease and make a decision.  They were previously TAW, so the previous agreement disappeared 11/30. They've been stalling and I'm out of patience.  Can anyone advise how to properly word this since I don't want to be told in court that it wasn't written properly and isn't valid?  

Thanks.