I have h1b valid till feb 2026. I am planning to change the status from h1b to h4 ead. I do have approved i140. If I change my status will my i140 be not valid anymore? Or still I can still apply for greencard when priority date becames current. Also I am planning to file together with my husband h1b in premium processing. What should be the start date. If I give start date as oct 1st will my h4 ead start date will be oct or is there a way I can get it earlier?
I140 stays valid irrespective of whether you are on H1B or H4.
You would be able to use that i140 whenever you want in future.
The H4 dates are matched with H1B start and end date if you file it with H1B.
Start date which I mentioned will be the start date or start date of h1b extension?