Whether the appeal against the justice of the peace's decision was timely despite an erroneous 30-day appeal instruction.
No. Because the matter was subject to summary proceedings, the applicable appeal period was 10 days; the incorrect instruction did not protect the appellant, who was represented by counsel and could see the error from the law itself.
For voluntary jurisdiction the CPC applies subsidiarily; under Art. 248 let. e CPC the matter is governed by summary procedure, so only a point-of-law appeal is available within 10 days under Art. 321 CPC. Good-faith protection does not apply where the legal error is objectively recognizable, especially for a professionally represented party.