Tenants owes more than Security Deposit

[Craig C.]

I had tenants move out while past due on rent (1.5 months).  I mailed the "official letter" to their new address saying the SD would be kept and that they still owe additional money, but I've received no response (they haven't responded to email either).

What's my next step? They moved out of state if that matters.

[Michael Noto]

@Craig C. If you are running a business I would not get in the habit of cutting breaks when it comes to money coming directly out of your pocket.