Questão jurídica principal
Whether the termination of the commercial lease was contrary to good faith and therefore voidable
Decisão extraída
No. The landlord had a plausible, protected interest in avoiding rent default risk; the higher rent with a new tenant did not make the notice abusive.
Fundamentação extraída
The canton found as fact that the landlord terminated because she feared non-payment, not as a mere pretext. That factual finding bound the Federal Tribunal. A termination for economic reasons and to secure rent payment is generally permissible.