P.R. Laws tit. 8, § 1154
The grandparents of a minor may request to be heard in any proceedings for the protection thereof. The court shall grant the right to be heard when it determines that the grandparents maintain a relationship with the minor or have made sufficient efforts to establish one, and that allowing them to be heard is consistent with the purpose of this chapter to seek the best interests of the minor. However, grandparents shall not be entitled to intervene or become an intervener in the proceedings.
Siblings of legal age who are not dependents of the parents may request to be heard in any proceedings for the protection of minors. The court shall grant the right to be heard when it determines that the siblings maintain a relationship with the minor or have made sufficient efforts to establish one, and that allowing them to be heard is consistent with the purpose of this Act to seek the best interests of the minor. However, siblings shall not be entitled to intervene or become interveners in the proceedings.
History —Dec. 16, 2011, No. 246, § 44, eff. 90 days after Dec. 16, 2011.