Kernrechtsfrage
Whether the federal appeal remained admissible after the appellants sold their property during the proceedings.
Extrahierter Entscheid
The appellants retained standing because they had been parties below and had a sufficient practical interest; the case continued in their name for the buyers.
Extrahierte Begründung
The sale after the appeal was filed did not remove their procedural legitimacy under the applicable rules on succession in proceedings.