Tenant quit job and is leaving before lease is up

[Isaac Braun]

My tenant is going through a divorce and has decided to quit their job and leave the property.  The lease isn't up until May 2019.  What is the best plan of action legally.   This was a very qualified tenant with great references and verified previous landlords.    Suddenly it is next to impossible to communicate.   I don't fully understand what I am legally allowed to do.  This property is in St. Cloud, MN.  I have the property listed and am collecting applications for a new tenant.  Beyond that I'm not entirely sure what I'm allowed to do.