Kernrechtsfrage
Whether the appellate court arbitrarily found that the tenants knew of a possible defect/duress as of 29 September 2000 and could therefore ratify the contract.
Extrahierter Entscheid
No. Based on the tenants' own pleadings, the appellate court could find that they had secure knowledge of serious sale negotiations and had to consider possible deception.
Extrahierte Begründung
The constitutional complaint only succeeds against arbitrary fact-finding. The tenants' own written statement showed more than mere suspicion; the inference drawn by the cantonal court was therefore not arbitrary.