You may not be able to finish the paperwork if you and your spouse are no longer together. Your spouse's cooperation is typically needed to successfully obtain a green card. Would your spouse be willing to help you obtain a green card? Without reviewing the documents and discussing the marriage further, it is hard to assess what can be done. You can read more about adjustment of status at http://myattorneyusa.com/adjustment-of-immigration-status.
Answered on Jun 02nd, 2016 at 3:22 PM