Questão jurídica principal
Whether the cantonal court violated CPC notice and hearing rules by failing to invite the mother to comment on the daughter's joint appeal.
Decisão extraída
Yes. The appellate court had to notify the joint appeal to the principal appellant and set a 30-day response period with warning of default consequences.
Fundamentação extraída
A joint appeal is treated analogously to an appeal under Art. 312 CPC; the principal appellant must be heard. Since the court merely forwarded the filing by simple mail and did not invite comments, the right to be heard was violated.