Eviction or Thirty Day notice? Other options?

[Michael Caraballo]

Hello,

I have an issue at one of my rental properties I would like some advice on. My tenants moved in another tenant whose name is not on the lease without my approval. To my understanding this breach of the lease makes their current lease void. They are on a month to month lease and I understand evictions are costly and time consuming. Would it be better to just not renew their lease at the end of the month and give them a 30 day notice to find another place or should I consider going the eviction route? Or if there are other options please enlighten me. Thanks. 

[Michael Caraballo]

@James Wise great point. Will take this into consideration.