Kernrechtsfrage
Whether the employment contract had to transfer to the purchaser under Art. 333 CO despite the employee lacking a work permit.
Extrahierter Entscheid
Yes. The employment contract was valid absent any condition making validity dependent on the permit, and the purchaser could not rely on the missing permit to refuse the automatic transfer.
Extrahierte Begründung
A lack of public-law work authorization does not by itself void the employment contract. Under Art. 333 CO, existing employment relationships pass automatically to the transferee. The purchaser had to assess and regularize the employees' status in advance; it had taken no steps to do so and therefore could not invoke the permit issue.