Tenant Not Paying Rent - What Are Next Steps?

[Chris S.]

I have a two family in MA in which one unit has only payed a half months rent over the last three months.  

I have been in communication with this tenant--she did lose her job and was struggling financially---had initially asked me in early March if she could send rent in chunks which I said I was ok with, but she hasn't paid anything since that half month rent payment for March.

So, i'm sort of not sure what to do here.  Anyone have any advice on a stern sort of text to send to her -- I did just find out she is working again through another party (not sure if full time or not).  I honestly don't care about the 2 1/2 months of unpaid back rent--I just want to make sure I'm getting rent moving forward.