It depends on whether your parents are in the US or outside the US. IF they are in the US and are eligible, they can file the I-485 forms. If they are abroad, you will need to wait for the I-130 petitions on their behalf to be approved and you will get additional instructions from the National Visa Center for the consular processing stage. Please let me know if you have any additional questions or how I can be of further assistance to you in this matter.
Answered on Nov 01st, 2012 at 7:15 AM