Questão jurídica principal
Whether the appeal against the incidental ruling on procedural capacity was immediately admissible under Art. 93 LTF.
Decisão extraída
Yes. A contrary ruling could end the case immediately, and the merits would require a long and costly evidentiary process.
Fundamentação extraída
The Federal Supreme Court could definitively dispose of the action if the foundation lacked capacity to sue; the damage claim would otherwise require complex multi-year evidence and expert assessment.