As a foreign national applying for lawful permanent residence in the United States, you could be issued a conditional Green Card valid for 2 years under certain conditions. Generally, an applicant is issued a Green Card (Permanent Resident Card is the official name) with a maximum validity of 10 years. However, if you are applying for a marriage-based Green Card or as an entrepreneur, and your Green Card conditions are met, then the US government will allow you to continue your stay in the country with an unconditional Green Card valid for 10 years.
How to Remove Conditions on Your Green Card?
For foreign nationals with a marriage-based conditional Green Card, Form I-751, Petition to Remove Conditions on Residence, must be filed with the US citizen partner or as an entrepreneur, then you can remove said conditions by proving that your marriage was bona fide. For foreign nationals with an investment-based conditional Green Card, Form I-829, Petition by Investor to Remove Conditions on Permanent Resident Status, must be filed to remove said conditions.
However, since your conditional Green Card is only valid for 2 years, many applicants have questions about what happens if your conditional Green Card expires while you have petitioned for removing the conditions?
The US Citizenship and Immigration Services (USCIS) issues Form I-797 to applicants who have applied to remove conditions on their Green Card. This form essentially states that such applicants will have their residency automatically extended for a certain period past the expiration date of their Green Card.