Kernrechtsfrage
Whether the landlord validly terminated the lease early under Art. 285 CO.
Extrahierter Entscheid
The early termination was valid because the tenant persistently breached important contractual duties despite prior written warning, making continuation of the lease intolerable for the landlord.
Extrahierte Begründung
The cantonal findings, not shown to be arbitrary, established repeated failures regarding information duties, accounts, opening hours, staffing and compliance with contractual obligations; under Art. 285 CO, read with the principles of Art. 257f CO, such persistent breaches justified termination on 30 days' notice to month-end.