New landlord need advice：Tenant do not pay rent

[James Xie]

Hi everyone,

Hope you guys doing well. I have small warehouse in NY which is rented almost 2 years. From this month, the tenant do not pay rent yet. Also the tenant does not answer the phone when I call or text. It heard  he moved to another location and use my warehouse only for storage. The lease term is until 2020 may. 

This is my first time for renting.I do not have any experience to deal this. Do I need to find lawyer sue him if he still do not pay ? Or what I will do next ?

Any advice will be welcomed.

Thanks advance