急求幫助，請回複，多謝！

I filed my EB3 back in 2001, and my LC and I-140 are both approved. Due to the larger retregression of EB3 visa number than EB2 visa number, I filed a new LC with a new job title so that I can take advantage of my old priority date and the faster available EB2 visa number. The new LC is approved and the new I-140 is pending. Now, my priority date has became available for EB3, but my lawyer told me that I better wait for the new I-140 to be approved and file I-485 with the new job title. If I file I-485 with the old I-140, then either I put the old job title in the employement letter and get my I-485 rejected, or I don't put any job title in the employement letter and probably get an interview request. What should I do in this situation? Is what my lawyer said right? I am totally shocked by what he said because I thought I can file I-485 with either EB3 or EB2, whichever comes available first. 現在我有什莫辦法補救嗎？Thank you very much for your help!