If you are an immediate relative of a US citizen, you can become a lawful permanent resident (get a Green Card) based on your family relationship. For Family-Based Applications: A U.S. citizen or lawful permanent resident family member must file Form I-130, Petition for Alien Relative.Form I485 (Application to Register Permanent Residence or Adjust Status) is the main form used to apply for a Green Card. There is no predetermined amount of time for a US citizen to sponsor a spouse in Greensboro, and other surrounding areas such as Winston-Salem and High Point. After the marriage, the K1 visa holder can apply for a green card. If you wish to apply for a family-based visa (green card). Call our family-based immigration lawyer in Charlotte at (704) 870-0340. Form I-130: Petition for Alien Relative is the first form you must file to start the marriage-based green card application process. How Do I Qualify for Lawful Permanent Resident Status? The U.S. citizen spouse must file an affidavit of support, officially called Form I864, for their foreign spouse.