Collecting for Damages in MA

[Jill B.]

I am a landlord in MA and recently had tenants move out and cause damages to my property (soot all over the walls + holes which required extensive cleaning, patching and re-painting).

I did have a security deposit, but unfortunately, I was not aware of the very specific security deposit laws in MA.  I fully take responsibility for this and realize it was my mistake.  When the tenants demanded return of their deposit, I immediately acknowledged my mistake and returned the deposit.

This does not change the fact that they are responsible for these damages. 

I took a full video of the apartment upon move-in with myself and the tenant in the video and have numerous photos & videos of the condition of the apartment when vacated.

I want to bill the tenants for the damages but want to make sure I follow the laws/procedures correctly.  Does anyone have info on what to do? I am having trouble finding info online (everything is tenant favored!!)

If they don't pay (which they have already said they will not pay a dollar), what are the next steps? 

Can I report to a credit agency in MA?