請教老師：拿的給新加坡和智利的H1B1簽證，LCA是三年，H1B1簽證是一年半的，現在快到期了，
-Do you mean your H-1B1 visa stamp on your passport will expire soon or your H-1B1 status (I-94) will expire soon?
If your H-1B1 I-94 (or the expiration date on the H-1B1 Approval Notice) will expire soon, then you need to ask your empoyer to file a new I-290 to renew your H-1B1 status and then, you can use the new approval notice to aply for the visa in Singapore or just continue to work in US.
If it is just your H-1B1 visa stamp will expire soon, but your H-1B1 I-94 does not, then you continue to work, not need to get the new visa stamp. If you want to travel to Singapore, you can use the H-1B1 Approval notice, the employment letter from your employer and your paycheck stubs of most recent 3 months to apply for the H-1B1 visa to come back. It does not matter to the LCA.
想延期辦簽證，LCA還有一年半才到期，那還可以用這張LCA去大使館辦簽證延期嗎？
還是要雇主申請新的LCA？另外，換了新護照，I94狀態不受影響吧？謝謝老師。
