Thank you all for the information.
On the I-864, I have my wife (K1 visa) as the primary immigrant and my stepdaughter as an additional family member (K2). Do I need to fill out (2) I-864's, one for each?
Also, if I need to complete (2) one for my stepdaughter, would I complete a form where she is the primary immigrant and not include her mother as an additional family member?
Lastly, if two I-864's are required, do I need to include a copy of my taxes, my passport, birth certificate, and SSN for each I-864?
Thank you.