Question juridique clé
Whether the stock corporation/community appellant had valid representation authority before the cantonal courts
Solution extraite
The appellants failed to show that the representative had authority to act for the condominium association; the court could require the minutes, regulations, and ownership list, and no further deadline was owed.
Motifs extraits
Without the supporting documents, the court could not verify valid convocation, quorum, or whether a majority decision sufficed for litigation authority under the condominium rules and ZGB provisions. The administrative court therefore lawfully refused to hear the association's appeal.