我通过婚姻获得了两年期绿卡，如何转为永久绿卡？
通常，您需要提交 I-751（Petition to Remove Conditions on Residence）申请)，来解除永久居民身份上的条件限制。对于通过婚姻获得的两年期有条件绿卡（conditional green card）持有人，这是获得永久绿卡的重要步骤。
如果您仍与配偶维持婚姻关系并共同申请，一般需要在有条件绿卡到期前的 90 天内提交 I-751，并提供证据证明婚姻是真实诚意缔结（entered into in good faith）的，而非为了获得移民福利。
如果婚姻已经结束，或者因其他原因无法与配偶共同申请，您仍可能通过申请联合提交豁免（waiver）自行递交 I-751。不同豁免类别的申请时机和所需证据可能有所不同，因此应根据个案情况进行评估。
这条回答解决您的问题了吗？
相关问题
USCIS looks for evidence showing that the marriage was entered into in good faith and that you built a shared life together. Helpful evidence can include joint bank accounts and other finances, leases or mortgages, insurance policies, tax records, children’s records, travel records and other documents showing a shared residence and life together. Evidence covering the full period of the marriage is generally stronger than documents created only shortly before filing.