14 days notice and Last month rent

[Ostany D Isaac]

Hello Guys,

I'm planning on serving a 14 days notice to quit to one of my tenants and that's going to be my first eviction, when i bought the property she was already in it and apparently she used her last month rent at some point cause she couldn't pay rent that month, so when  i took over the property there's no more last month rent, in the 14 day notice, i wanted to include in the total amount the last month she owe me. is that doable in Massachusetts ? as of the second of this month she will owe me two moth plus the last month, what you guys think ?