Can I go for H1B visa stamping & H4b visa stamping for my wife at the US embassy or that is invalid because I re-entered The US using advance parole?

Reentering the U. S. on an advance parole instead of H-1B is not a permanent choice. The individual holding an H-1B status can simply go outside the United States and come back in using the H-1B visa instead of advance parole the next time. And so you can go overseas and have H-1B and H-4 stamping for yourself and your wife before your I-485 is approved. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.