女，目前在美國境內，B1入境（十年簽證，之前5年多次出入境），要和公民結婚。有一個12歲孩子，一個16歲孩子。
請問：
1. 要在國內準備什麽公證材料？包括自己和孩子？-The mother needs to provide the copies of her previous marriage certificate, divorce certificate, and her current marriege certificate (after marrying the US citizen). All of the three people need to provide their birth certificates and passports, respectively. The kid who is 16 also needs to provide the non-criminal record certificate for the immigrant visa application.
By the way, the mother had better wait for about 3 months after she entered US using B1 visa and then, get married and apply for the green card in case USCIS consider she had the immigrant intent before she entered US (i.e. B1 visa fraud).
2. 結婚後母親申請綠卡的時候，可以給孩子同時申請嗎？-Yes, the mother can file I-485 within US, but the kids have to apply for the immigrant visa in China. 是不是同時拿到綠卡？-No.
3. 遞交了綠卡申請後，是否母子就可以合法學習和工作了？-Yes, the mother can, but she needs to apply for EAD to work. The kids can get the green card immediately after they enter US using immigrant visa.
還是要等到綠卡批準?
4. 孩子還在國內，申請綠卡後他如何入境？-They only can apply for the immigrant visa to enter US after the mother marries the US citizen.可以得到一個特殊簽證嗎, 還是得等綠卡批準才可以入境？
目前需要請一位精通這方麵手續的律師，確保快速，可靠拿到綠卡。請問到哪裏能找到推薦-This is a v ery simple case and any immigration lawyer can handle this kind of case.
多謝了！
