This weekend the family got on the topic of something happening to their dad. Somehow the kids got it in their head that they wouldn't see their half sibling if we were to get divorced or he were to die. I told them that I would always let them see their sibling. It took everything in me to not say that if it would actually happen is up to their mom.
Is there any legal way for me to make that happen? Would he have to write it in his will or do we when to reevaluate the custody agreement?