When statement of a lawyer differs from that of USCIS - 回复：离职后公司

When statement of a lawyer differs from that of USCIS, it is imperative for one to make a wise decision to take on side.

http://shusterman.com/pdf/yatesusimmigrationmemo92305.pdf
Page 6 of USCIS Memo 09/23/05
(A) ... In those cases where the alien’s priority date is established by the filing of the labor certification, once the alien’s Form I-140 petition has been approved, the alien beneficiary retains his or her priority date as established by the filing of the labor certification for any future Form I-140 petitions, unless the previously approved Form I-140 petition has been revoked because of fraud or willful misrepresentation.