Key legal question
Whether the public-law appeal against the cantonal judgment ordering cancellation of the provisional lien was admissible and well-founded.
Extracted holding
The appeal was admissible in principle only as a public-law appeal, but it was dismissed insofar as admissible because the cantonal court did not act arbitrarily.
Extracted reasoning
A definitive lien action must be brought against the current owner of the property. The provisional registration preserves the deadline under Art. 839 CC, but it does not make the later definitive-lien proceeding a mere continuation of the first proceeding. The transfer of the condominium unit before the definitive action therefore mattered, and the appellant's arguments on lis pendens and Art. 110 CPC Ticino failed.