Questão jurídica principal
Whether a third-party pledgor may use Art. 85a SchKG to contest the existence of a mortgage right.
Decisão extraída
No. Art. 85a SchKG only allows the debtor to seek a declaration that the debt does not exist, is not yet due, or is deferred; it does not extend to challenging the existence of the pledge right.
Fundamentação extraída
The wording, history, and purpose of Art. 85a SchKG concern the debt itself, not the collateral security. The term 'debtor' does not include a third-party pledgor. Other remedies remain available, including objection under Art. 153 Abs. 2 SchKG and a general declaratory action.