I have valid H1b Visa for Employer A, and wife has H4 EAD valid until Aug 2020.If i transfer my H1 to new Employer B, Will i be able apply for H4 extension and new H4 EAD at the same time? I was told that H4 EAD cannot be applied before 180 days of expiry of existing EAD which is around Feb 1st 2020.