8老師好：
1. 如果移民申請剛批準，能否馬上作為sponsor 為親屬遞交I-130？
-Yes. You can sponosr your relative any time after you become a green card holder.
還是最好等一段時間 ？
-Not need.
2. 如果beneficiary 在I-130 pending 的情況下，能否用已有的B2簽證入境 ？
-Depends. If it takes for a longer time for the I-130 priority date to be current, it should be Ok. But if the I-130 priority date is current or nearly current, the beneficiary may have trouble to get B2 visa or have trouble to enter US due to immigrant intent if the beneficiary is an adult.
If the beneficiary still wants to try B2 in this case, he/she needs to tell the truth (i.e., I-130 pending) during the visa application.
3. 如果擔心入境被查問，在入境後再遞交I-130會對其批準有影響嗎？
-No, but don't file the I-130 until 90 days later after the beneficiary enters US using B2 visa.
再次感謝8老師！
