Questione giuridica chiave
Whether the cantonal court violated the right to be heard by examining the tenant's claim to compensation for leasehold improvements.
Decisione estratta
No. The court did not rely on an unforeseeable legal ground and was entitled to examine whether the claimed set-off right existed.
Motivazione estratta
Because the tenant herself invoked Art. 260a CO and argued for compensation based on the unamortized value of the improvements, the court's analysis of whether such a claim was legally founded was foreseeable.