A court may grant a guardianship of a child only if: each of the child’s living parents consents: in writing; or by failure to timely file notice of objection after being served with a show–cause order in accordance with this subtitle; an administrative, executive, or judicial body of a state or other jurisdiction has granted a governmental unit or person other than a parent the power to consent to adoption, and the governmental unit or person consents; or parental rights have been terminated in compliance with the laws of a state or other jurisdiction, as described in § 5–3A–05 of this subtitle. A governmental unit or person: may condition consent or acquiescence on adoption into a specific family that a child placement agency has approved for the placement; but may not condition consent or acquiescence on any factor other than placement into a specific family.