谢谢老师！
还想再确认一下避免搞砸：
这样的interfiling就是说完全不提交新的485申请，就直接写信要求转原来的我老公case里边的两个485？
-Correct. This is the law allows you to save the money and USCIS energy and time. Thus, USCIS does not need to process your I-485 all over again.
还是说在正常的485表格、申请费之外，再额外的附上这个interfiling的petition letter？
-No.
那么要填的表格和交的费用就都是一样，
但是如果transfer成功的话，后面就不会再要我们打指纹了？
-Do nothing. It is equal to your filing two I-485s already. Your pending I-485 will be considered for approval based on both of your I-140, depends on which I-140 PD is current.
你给的那个链接里的情形，因为是他自己的两个不同case之间转485，所以他好像没有重新提交表格这些，直接就是写信要求把原有的485转到另一个刚批好的I140上面。我们的情况要复杂一些，所以还是有些不明白。
-I just give you an example and the principle is the same for all cases, even can transfer I-485 from I-130 (family based) to I-140 (employment based).
谢谢指教！
