Tenant is subletting on AirBnb, what should I do?

[Victoria C.]

I just found out my tenant is AirBnBing my house. What should I do? I somewhat like the fact that they are keeping the house clean and there is less wear and tear, kitchen use, etc. The host has been getting good reviews, but I don't think the neighbors like the idea of it being an AirBnb. My first instinct was that it is a breach in contract, and to evict them (I have a property manager). But I also saw someone suggest a joint venture, how would that work out? Thanks in advance, Newbie in Sacramento