Sabkobhalo Hos. You Can Always re-negotiate the salary. The Salary stated when you file for your green card, is not a legal contract between you and employer. He can pay you more or less. He also doesnt have to hire you, neither do you have towork for him, after your green card is approved. All that stated Salary means is, that your employer has enough assest, cash flow, to pay that salary to you, if you were to hired, or assuming that you get the green card and work for him. Abbha in US I 140- This is the Petition, requesting Alien Worker to be a permanent resident. This is not filed by you, but rather by your employer/sponsoron your behalf. Meaning, your sponsor requesting Immigration to let you be the permanent Resident. Also, just because 140 is approved doesnt mean you will get a green card ( In most cases if your 140 is approved then your 485 will be too ) I 485 - This, after your 140 is approved, is filled by the applicant (you) requesting that your status now be changed to a permanent resident, and you be registerd as a perm. resident. Please Note- All 485(based on employment ) filed after JULY 24/2006 WILL NOW GO TO NEBRASKA SERVICE CENTER.