Frequently Asked Questions - Loss of green card
Includes topics of loss of physical green card papers or the card itself as well as loss of green card through abandonment and criminal activity.
You do not need a lawyer for something simple like this usually. I think you should look at Form I-90 at the USCIS web site.
1. In general, you will need to present a passport from your country of citizenship or your refugee travel document to travel to a foreign country. In addition, the foreign country may have additional entry/exit requirements (such as a visa). For information on foreign entry and exit requirements, see the D