Consent of a parent to guardianship may include a waiver of the right to notice of: the filing of a petition under this subtitle; and a hearing under this subtitle. Consent to guardianship entered into before a judge on the record shall include a waiver of a revocation period. Consent of a party to guardianship is not valid unless: the consent is given in a language that the party understands; if given in a language other than English, the consent: is given before a judge on the record; or is accompanied by the affidavit of a translator stating that the translation of the document of consent is accurate; the party has received written notice or on–the–record notice before a judge of: the revocation provisions in subsections (a)(2) and (c)(1) of this section; the search rights of adoptees and parents under § 5–359 of this subtitle and the search rights of adoptees, parents, and siblings under Subtitle 4B of this title; and the right to file a disclosure veto under § 5–359 of this subtitle; if signed after counsel enters an appearance for a parent, the consent is accompanied by an affidavit of counsel stating that: counsel reviewed the consent with the parent; and the parent consents knowingly and voluntarily; and the consent is accompanied by an affidavit of counsel appointed under § 5–307(a) of this subtitle stating that a parent who is a minor or has a disability consents knowingly and voluntarily. Whenever a local department receives consent to guardianship of an individual before a guardianship petition is filed, the local department promptly shall: file the consent in the individual’s CINA case; and serve a copy of the consent on: each living parent of the individual; the parent’s last attorney of record in the CINA case; and the individual’s last attorney of record in the CINA case. Whenever a party obtains consent to guardianship after a guardianship petition is filed, the party promptly shall: file the consent with the juvenile court in which the petition is pending; and serve a copy of the consent on each other party. Subject to paragraph (2) of this subsection, a person may revoke consent to guardianship any time within the later of: 30 days after the person signs the consent; or 30 days after the consent is filed as required under this section. Consent to guardianship under subsection (a)(2) of this section is irrevocable. If, at any time before a juvenile court enters an order for adoption of a child, the juvenile court finds that a condition of consent to guardianship will not be fulfilled, the consent or acquiescence becomes invalid.