If you wish to retain your lawful residence, you should at least file for a Reentry permit which allows you to retain your legal residence even if you stay overseas for a continuous 2 year period. If you wish to remain outside the US for more than 2 years, there are other options that you may avail yourself. I will need to know more about the facts of your situation. Please consult with an experienced immigration attorney.
Answered on May 08th, 2014 at 5:52 PM