Wow....I had no idea that could happen. I did look up my state's Child Protection Act and didn't see anything that would apply to polyamory. As far as I can tell, the state only gets involved in cases of abuse or neglect, but I'll read it more thoroughly later. There was a section called "Household Members" but it was repealed in 1994; I'm curious what it said.
Loving Radiance, it's so good to hear we're not the only ones attempting this kind of arrangement. Maybe I'll have questions for you as things develop further. Thanks everyone!