Question juridique clé
Whether the landlord's termination was invalid because it relied on Art. 266g OR instead of Art. 257f OR.
Solution extraite
No. A termination based on a clearly described factual basis remains effective if it is justified under another applicable statutory ground.
Motifs extraits
A mistaken legal qualification does not defeat a unilateral termination where an alternative norm supports it and the tenant suffers no disadvantage from the mislabeling; the prior instance could therefore uphold the termination on Art. 257f OR even though the notice invoked Art. 266g OR.