Yes the I-551 stamp is just as good as a green card. Travel with current passport, I-751 Receipt, and expired PR card.

Re-Entry Permit?

If you have a reentry permit use it for entry. This prevents you from abandoning the green card absent extreme abandonment facts provided you...

I am a green card holder and I am filing for my child under 21 years. Apart from Form I-130 what other forms do I need to fill?

just the I-130 and supporting docs (see I-130 form instructions) for now with proof of relationship. later you will need other documents at...

How long does it take for a (c)(18) eligibilty EAD to get approved .

no way to know but you can inquire with USCIS Customer Service after it is pending 75 days. All work cards are much slower that last year.

Masters Student on F1 OPT, H1B not picked in lottery yet. Employer wants to start PERM process

I concur with my colleague this is fine and recommended.

I-751 pending, wife filed for divorce? Very difficult situation

Advise USCIS you will be getting a divorce and will interfile the divorce decree when available. You will need a new I-751. Have you been...

N-400?

It is fine to inquire on a regular basis -- maybe once a month,. I suggest an INFOPASS next.

Medical Exam doc i 693 form?

That is standard language. I recommend brining the medical exam sealed to the interview unless you have already had your interview or you are...

The green card is his. Whether you sponsor him or not he can file to remove conditions on his permanent residency and would only need to show a...

Usual guideline that CBP uses is 1780 days in any one year period.