/biz/ - Business & Finance

>Rented out my old house to a tenant
>first 3 months of rent came in on time
>missed 4th payment
>tried contact him through email and phone for two weeks
>no response
>20 days later get a unaddressed package in the mail with the keys inside, no note or anything
>go to the house, everything gone except for garbage and a few pieces of leftover furniture
>try contacting tenant again
>no response again
I tried looking him up on social media but couldn't find him either. This is the first time I've rented to someone, what do I do?