That is a good idea Phee. The adoption maybe be shady and illegitimate. When it really comes down to it though Regina is a mass murderer and completely crazy so it is sort of disturbing that Henry lives with her. Just like it is disturbing when Regina touches anyone or gets too close to them. I guess that is all Henry has with Regina. I never feel like she is going to kill him when she touches him.
I do want there to be some sort of redemption for Regina, but i am not sure how that will play out.