I have I140 approved since October 2016. If i would change my employer under the same skills in Nov,2017 , do they still need to process my i140 again. The attorney with new employer says you dont have to start the Green Card processing again or file a i140. He says we will just keep renewing your H1b with the approved i140. What is the uscis process for this type of case? Is there any other suggestion or recommendation that i should watch out for? Thank you for your response in advance.