Tenant moved out without paying

[Kenny Luna]

I decided not to renew my tenants lease and gave them a 6 month notice. At the end they moved out and didn’t pay their last months rent, late fee and portion of electric bill. They also left a bunch of construction items in the patio, which the sanitation department does not discard.  I still have their security deposit which I can use towards the owed rent, and luckily nothing was damaged in the home. But I’m still left with an unpaid balance and may have to pay to have a service truck throw their things out. Ive tried contacting tenant numerous times but no response. 

What would you do?