Key legal question
Whether the cantonal appeal against the first-instance rent decision was time-barred under the applicable appeal period.
Extracted holding
The tenant could rely on the first-instance court's incorrect indication of a 30-day appeal period; the appellate court had to treat the appeal as timely.
Extracted reasoning
A party protected by good faith may rely on an erroneous legal remedy instruction unless the error was or should have been apparent through only a gross procedural check. In this transitional situation, the correct appeal period under Art. 314(1) ZPO was not evident from the statute alone.