什么情况会导致申请被拒绝？
-Many factors can result in N-400 denial. If you have some specific reasons to worry about, let me know and I can explain it to you.
拒绝后怎么办？
-Depends on the denial reason. If it is just common mistake, such as you missed biometrics, failure in the Test, etc. Then, you still have second chance or reapply for it.
绿卡过期前还能申请绿卡延长吗
-Yes as long as you do not take the oath yet.
信用分数会影响吗？
-If you have very bad credit scores, it will affect your N-400.
