My inlaws received their greencard thru my husband. They went back and forth from USA to India for few years. For the last 4 years they did not come- first due to covid and then my mother in law had significant health issues due to rheumatoid arthritis.
My husband is their only child and they desire to be with him now. Please advise do we file a petition again? Or is their greencard still valid?
thank you so much in advance