Questione giuridica chiave
Whether the creditor had standing to complain against the debt office's refusal to issue a payment order in mortgage enforcement against the solidary debtor.
Decisione estratta
Yes. The creditor had a sufficient legal or factual interest and the cantonal authority should have entered the complaint under Art. 17 SchKG.
Motivazione estratta
The authority confused standing with the substantive question whether mortgage enforcement against the solidary debtor was permissible. A creditor may challenge a debt office's refusal to act on its enforcement request, and the possibility of obtaining a shortfall certificate makes the request practically relevant.