Hi, all

It's been a long time. I'm afraid that I don't have any good news now. My status is still sitting tight so far. I don't receive any action, letter and email from TSC since 7th of July. Anyway I have a question. My GC expire is 2nd September 2007. We (My husband and I) are going to go to overseas, and live there for 4-5 years. Because my husband got order of government job. I thought I would receive my 10 year GC before leave U.S. But unfortunately it's hopeless right now

I have read I-751 instruction and USCIS website...but I couldn't find answer. Any advice and suggestion are highly appreciated.
My question is "Do I need to get passport stamp before my GC expires?".
And...would you tell me the reason too?
Thank you.