Hello,
We have been hosting for over a year in the Pacafic coast of CR and our Airbnb is in English, but my boyfriend speaks fluent Spanish and I speak some, we have listed on our profile that our languages are Spanish and English. Of all of our guests, we have recieved a few bookings/messages in Spanish as the rest are written to us in English. I wouldn’t let this stop you from hosting. Its a good gesture to learn some of the language to speak to future guests from countries of mainly spanish speaking people, but also its good to give your guests insight into the language if its new to them.
Pura vida
Hannah