Kernrechtsfrage
Whether the appeal should be dismissed for lack of legal interest because the appellant had made no maintenance payments
Extrahierter Entscheid
The appellant had a sufficient legal interest because he could still face future claims and recourse claims from alimony advances.
Extrahierte Begründung
A party subject to an enforceable maintenance obligation has a concrete interest in reduction or cancellation even if no payments have been made, due to possible future enforcement consequences.