You are really playing with fire here and in my private opinion you may already be in quite a bit of trouble. This is not about as you put it "reading horror stories", this is about complying with the plain meaning of the law.
You need to keep the U.S. as your primary place of residence and employment in order to keep a GC status. The best I can tell, you don't own a home in the U.S., and neither do you have a job here.
What is more, on the return from your last trip you appear to have lied to the immigration officer by saying that you were coming back here for good while in reality you already had a plane ticket to Japan for January 2006 and you had every intention to leave then. Whatever special notations in your passport (I do not know what they mean), this stuff can catch up with you sooner or later and then you will be in real trouble.

Originally Posted by
Osiris94
Yesterday, I just got back from this second trip to Japan. It was again after a stay shorter than 6 months. This time, I had to answer more questions from the custom officer. He asked about my previous trips to Japan and what I did there. I wasn't quite sure about how much info he had in hands, but I chose to answer honestly. However, when he repeatidely asked me if I was back to the US for good with the intent to work here, I felt I had no choice but say "yes" even though I'm actually planning to go back to Japan in January 2006. He finally let me go but after writing this note below the stamp on my passport: "OUT (or CN7.. can't read well) 6 MS - ADV LPR RC-QS".
1. Does anyone know what this note exactly means?
2. I had already booked a flight LA-Osaka-LA before my return to the US. It seems the custom officer didn't have access to this info. But is there a probability that he could have had this info?... which is retrospectively a scary thought...
I've had plans to repeat the exact same moves this year... I should obtain a 1-year renewal of my Japanese working permit in January. That would allow me to stay one more year in Japan where I've had a pleasant time so far. In any case, since am also seeking eligibility for naturalization, I won't stay in Japan for more than an additional year in order to keep my total stay there to under 2 years. I will make this again in 2 stays of a little less than 6 months each. The flight ticket that I booked is for a departure from LA on Jan 3rd, returning in June. Then I'll stay in the US for a couple of days before leaving for a last trip...
This was my plan until I read a few "horror tales" and careful recommendations from lawyers on this website... Now I'm wondering:
3. Am I risking my Green Card if I leave again in January, now that I have this note on my passport? Will the custom officers notice a pattern in my multiple stays and determine that I abandoned my residency in the US?
In my opinion, yes, you do risk the immigration officer determining that you have abandoned your permanent resident status in the U.S. Moreover, whether or not the immigation officer prevents you from reentry the next time around, this problem may catch up with you later on.

Originally Posted by
Osiris94
4. What documents would I need to prove that I will keep my residency in the US and that my stay in Japan will be only temporary? (I already have a contract from a Japanese company which will expire in Nov 2006)
I think that if you really want to have a chance of being in the clear regarding the U.S. immigration laws, you need to tear up both your January ticket to Japan and your contract there, find a job in the U.S. and settle here for good now.
Even if you can prove the next time that your stay in Japan was temporary, there is still the little matter of lying to the immigration officer upon re-entry this time.

Originally Posted by
Osiris94
5. Would it be safer if I apply for a re-entry permit to return in June 2006 even though I won't stay abroad over 6 months?
No, in my opinion, absolutely not. Having or not having a reentry permit has nothing to do with maintaining your LPR status here. The only thing that a reentry permit allows you to do is to re-enter the U.S. after more than one year but less than two years abroad without having to obtain a returning resident visa first.
N-400 [Chicago office, via Nebraska Service Cntr]
Rec'd date: 12/06/2006
FP notice date: 12/20/2006
FP taken (Indianapolis): 01/11/2007
2nd FP notice 09/09/2008
2ndFP taken (Indianapolis) 09/26/2008
Interview letter 01/24/2009
Interview 03/26/2009 (completed)
Oath letter rec'd 04/29/09
Oath date 05/14/09 (completed)
U.S. pssprt applied and rec'd (Chicago pssprt agency) 05/22/2009
I am not a lawyer. Anything I say here is my personal opinion and should not be viewed as legal advice.