通常情况下，我们建议客人在绿卡批准前应保持其非移民身份。对于大部分客人来说，
即使他们已经可以使用EAD(基于其I-485 pending) 工作，还是应该保持他们的H-1B身
份。只要申请人的劳工卡或I-140已经pending了365天又或是I-140已批准，都可以继续
延期六年以外的H-1B。以下我们将谈论在绿卡申请中为什么需要保持有效的H身份。
We always advise clients to maintain their nonimmigrant status until they
adjust status to that of permanent resident and receive their “green card.
” For most clients, this means extending their H1B status even though they
have access to and may even hold Employment Authorization (EAD) based on
their pending I-485 Ap
