Yes, you will file I-864 along with the petition. Ensure that you have sufficient income to meet the guidelines. If not you may seek co-sponsorship.
This response is general in nature and cannot be construed as legal advice, given that not enough facts are known. Any comments offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship. If you would like additional information based on this response, please contact my office at 510 657 7665 or 415 902 0832 to schedule a consultation.
What you need to do is post your Question in the Immigration Section. I will transfer you to their Forum.
We offer general concepts, but you should give ALL your facts to a licensed Attorney in your state before you RELY upon any legal advice.