thanks Misscloud, very helpful answer! Also thanks, Mike
She's K2 and 24 years old now to answer some of your questions. Also, did not adopt my stepdaughter and her mother is still a green card holder who can apply for citizenship.
My stepdaughter would like to become a citizen. She and her mom (my wife) arrived 5 years ago. However, it took about 15 months for them to receive their green cards. The rule for Form N-400 states that you must be a permanent resident for 5 years for my daughter (3 for wife). Did my daughter become a permanent resident when she arrived in the US or ONLY after receiving her green card. That's important to know so her N-400 doesn't get rejected. I did a lot of google searches but couldn't find an answer. Thanks in advance.