Kernrechtsfrage
Whether the liquidator could raise against the solidary liability order all objections available against the cooperative's tax assessments.
Extrahierter Entscheid
Yes. Although the assessments were formally final, he could invoke in the liability proceedings all objections relating to the assessment proceedings to protect his right to be heard.
Extrahierte Begründung
The liability procedure concerns payment solidarity only; formal appeal against the final assessments was no longer possible, but objections to the assessments had to be heard within the challenge to the liability order.