Questione giuridica chiave
Whether the cantonal court arbitrarily assessed the evidence and concluded that extra fees above CHF 30,000 per year were not authorized
Decisione estratta
The federal court found no arbitrariness in the appraisal of evidence or establishment of facts.
Motivazione estratta
The appellant merely offered its own reading of the file. The cantonal court reasonably relied on the evidence, including testimony, and it was not shown that a formal or tacit consent to higher fees had been proved.