more info...

I　personally don' think promotion would harm your GC since you will be stay in same company for at least 6 months. Even 6/12 months would be just a recommendation. This is some exertions from a lawyer's interpretation for AC21.
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Clearly, the law before AC21 was passed in October 2000 required that a person continue working with the employer that sponsored the green card for at least 6 months to 1 year after obtaining the green card. Although AC21 allows the changing of employers if the I-485 is not adjudicated within 180 days, there is no change in the law with respect to the intention of the employer to offer and the employee to undertake "permanent," full-time work with the sponsoring employer for the job advertised. Keep in mind that a green card job offer is legally considered a future job offer. Therefore, the employee must have a good-faith intention to work for the employer after the green card is approved, and the employer must have a good-faith intention to employ the employee after the green card is approved. Even if one worked for the sponsoring employer for several years while pursuing the green card process, that would not count as future intent. Generally, 6 months to 1 year after obtaining the green card is a safe time period to change employment. Failure to stay at the sponsoring employer may result in problems at the naturalization stage.

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• Tks. -PlsHelpEB3Interview- ♀ (0 bytes) () 11/04/2007 postreply 20:35:14