Submitting Form I-130, Petition for Alien Relative is the first step in sponsoring your spouse for a Green Card. USCIS will generally approve your Form I-130 if you can establish a relationship between you and your spouse is bona fide, that is, it is not just to get a green card. If your spouse is already in the United States and has entered the U.S. lawfully, he/she may be eligible to get their Green Card by filing Form I-485 Application to Register Permanent Residence or Adjust Status along with Form I-130. You may be able to submit Form I-765 to get your spouse an Employment Authorization Document (EAD) and a Form I-131 to get an Advance Parole (AP) international travel document. If your spouse legally entered the U.S., you may be able to file all of the above forms together.