Sidster, Your employer is not lying. Unfortunately it takes at least 60 days for to publish add on local paper. But wait, you are saying they are asking 90 days to fle I-140???? It takes around 60 days for LABOR not I-140. Once you have LABOR certified, you don't have to wait single day to flile I-140. And keep in mind that if you have certified labor now, you can even file I-485 parallel with I-140.