American citizen brother and sister application

Schedule-about 10 year; Currently scheduled for 99 years; At present, the trial may be slow, please wait patiently;

Reference-due date-date of birth-(date of approval-date of application) ≥ 21; That is, overage;

Parents-unmarried children F2B； whose parents have applied for a green card for about 8 years;

I hope to help lz! Good luck!

If you need other advice, please add it in the question, no hi; ;

-You substitute the relevant corresponding values into the calculation. If the result is greater than 2 1, it is over-aged;