Custody sa anak, parehong OFW ang magulang

Alam mo, since Philippine laws do not provide for laws, there really aren't very many legal developments as far as visitation rights and custody are concerned. The Family Code provides na minor children below 7 years should be in the custody of the mother. Since you and your ex-husband are both working abroad, and the children are both here in the Philippines, our cultural practices have been recognized by the courts. We Filipinos usually leave our children with extended family. In your case, your children used to be with your parents-in-law and now they are with your parents.
Dapat, both sides of the family should have a relationship with the children kasi, even if parents divorce or separate from each other, they do not divorce or separate from their children.
So, if your in-laws ask to see the children, you will have to accede to the request. Liban na lamang kung ang isang relationship with the paternal grandparents are not in the best interests of the children.
Ibig sabihin, for example, kung ang mga in-laws mo ay drug dealers or may prostitution house or sila ay nananakit ng mga bata, ito ay makakasira sa kalusugang emosyonal ng mga bata. O kaya, kung pipilitin ng mga in-laws mo na kidnap-in ang mga anak mo or ilayo ang loob sa iyo, or siraan ka sa mga anak mo, puede kang mag-refuse. Iyin na nga lang, be ready na magalit sa iyo at ipa-barangay ka or idemanda ka.
May karapatan ba sila? Oo. Absolute ba ang karapatan nila? Hinde. Sana'y nakatulong ito sa iyo. Please consukt with a lawyer. When your kids see their grandparents, make sure they are accomoanied. Kung may takot ka, ipa-blotter sa pulis or barangay (Women's Desk) kasama ang pictures ng mga bata na latest. Pakuhanin ng selfie and mga bata kasama ang mga grandparents, etc.

salamat po Atty