There is a tenant in the condo.
I wish to sell the condo as soon as possible.
How much notice do I legally have to give him?
I own a condo in Zermatt.
The period dictated by the rental agreement.
Agree, it’s whatever is written in the contract.
But you could try negotiating with your tenant to leave early. For example a cash payment and immediate refund of deposit could work wonders.
Be nice to your tenant, if they choose they can drag out their eviction for months ...
You could also offer to pay the move. In the end think about obstacles he/she may have and make it easy to get a smooth process.
You could also sell with the tenant in situ then it’s up to the new owners to deal with them.
You also must use the special forms from your canton. Be aware that they might object and get an extension for up to 3 years. After all, you can also sell the apartment with the existing contract. Which is easier if the tenant has no rental court protection. Also do not forget to offer the apartment your current tenant.