8老師你好！向你請教一個問題。
我父母親有綠卡，2025年到期。在2018年6月他們回國，當時持有為期兩年的reentry permit。2020年初疫情開始，他們也就沒法來美。後來我爸爸因為糖尿病引起的並發症，每隔一天都得進行腎透析。他還因為心髒病多次住院，就沒法回到美國。上個月我爸爸因病去世。我想帶我媽媽到美國住一段時間，或者和我們生活在一起。我想直接讓她做飛機飛美國，在我們這個城市現在有從中國直飛的航班了。如果海關/移民局管的比較鬆，就直接入關了，皆大歡喜；如果海關管的嚴，去移民法院上庭，輸贏我們都可以接受。我媽媽現在和我哥嫂生活在一起，她80多了，本來也不想過來（主要是怕給我們添麻煩）。我們的想法是先讓她過來住幾天換一下環境，如果習慣/喜歡就繼續和我們一起生活，如果還是故土難離，繼續回國養老也可以。我複印了我爸爸的病例和死亡證明，準備翻譯一下給海關/移民局官員看。還需要寫封信給他們解釋/說明情況嗎？ 謝謝！
-Technically, her green card has been void.
Because she overstayed in China for too long time, four possibilities may occur if she travels to China using the green card:
1. The officer at the port of entry may deny her entry into US because her green card technically was void and thus, she has no chance to go to the immigration court. If that happens, it will hurt her very much physically and psychologically because she is not young.
2. The officer may ask her to abandon the green card at the port of entry and then, issue her B2 status/I-94 to enter US.
3. The officer may allow her to enter US and then, she can go to the immigration court to justify her overstay in China.
4. The officer may make compromise to allow her to enter US using the green card. Thus, she is still a green card holder.
My suggestion is that she may just abandons the green card and then, applies for B2 visa to visit you. If she wants the green card again, you can sponsor her as you did before.
See this link for more information about abandonment of US green card from China:
Abandonment of Status (Form I-407) - U.S. Embassy & Consulates in China (usembassy-china.org.cn)
另外，我媽媽持有有效的綠卡和中國護照，國內航空公司會允許她登機吧？過國內的邊檢會有問題嗎？
-It should be fine. The problem probably will occur at the port of entry to US, not the airlines or Chinese Customs.
