Kernrechtsfrage
Whether the municipal tax lien was issued by a competent authority under the applicable cantonal law.
Extrahierter Entscheid
The municipality was competent to assess, collect, and secure the municipal capital gains tax, so the lien was valid.
Extrahierte Begründung
The tax claim and the statutory lien arose on registration of the property transfer on 2007-04-13, when the pre-2009 competence rules still applied in substance for lien purposes; under Graubünden law, the municipal tax lien arose automatically with the tax claim.