Does it have to be the first name in the blue book that has to sign the copy for the immigration, only I have a small problem my sons mother is the first name in the book but she has disappeared followed by my sons name he is the owner of the land and I have 100% custody over my son, will I be able to sign the copy on behalf of my son who is only 7 years old

You can sign a copy your son's registry in the house book.

You can sign a copy your son's registry in the house book.

OK thank you for your help

I am not in my wife's blue book but immigration were okay with me signing the copy of the blue book.