As far as I can tell, trying to catch up on the setting and read up on it all (currently a new player to a RPG of the setting and wanting to expand knowledge/hopefully read the books), the human parent of any White Court vampire kids don't tend to live long and the House they belong to ends up taking full custody, rearing their progeny how they see fit.
Which has made me wonder:
If the human parent somehow did live long enough to find out about the vampire-side and make a bolt with the baby (perhaps they were still pregnant at the time and thus had to still be alive) not wanting the vampire House anywhere near them: would they be able to actually try make any legal measures within the supernatural community, to try prevent that House from getting custody of the kid even if something were to happen to them?
They can't exactly take it to a human court and just go – “their other side are [despair/fear/rage/etc.] eating vampires who kill people for food and funsies and are going to try kill me and maybe my baby too with their political manoeuvrings, so please bar them from having any sort of custody ever” – or something like that to try make a case.
Even if they did get the family barred through other mortal legal means/excuses - that's not going to be respected.
But, the supernatural world does seem to at least have precedent with trials and legal cases and would at least certainly believe the parent (and possibly be more respected in any verdict they might reach).
So, within the described lore of the setting, is there anything that would indicate a way for a person to attempt to start a court case on a matter like this about custody of a white court child?
For instance there being a specifically described someone they could go to/protocols followed/things done?
Disclaimer: I don’t think they’d succeed with the case, with who they are up against, but this question is specifically wondering if there's anything on if even an attempt would be possible.