How long you can have green card in US?

To obtain a green card there are many ways: through employment, a family member or marriage. You must be sponsored by a family member in the U.S. in order to apply for a Family-Based Green Card. To apply for an Employment-Based Green Card, a foreign applicant must be sponsored by a qualifying U.S. employer.

Individuals who obtain a Green Card through marriage to a U.S. Citizen are granted "Conditional" Green Card status, which is only valid for two years. Individuals who have been granted Conditional Green Card Status are required to apply to remove the Conditions on their Green Card within 90 days of the date that their Conditional Permanent Resident status expires.