does petitioning a parent have the same priority as petitioning for a spouse?

[semidevil 12]

I want to clarify a couple of points regarding petitioning for the spouse's family to the U.S.

I'm a USC, who will have successfully petitioned for my wife.

- She needs to be a USC before we can sponsor her mother over, is that correct? If so, is my wife eligible for citizenship after 3 years, or 5 years of green card?

- Is the speed of sponsoring a parent the same as sponsoring a spouse (i,e 1 to 2 years by current time frame)? Is the process exactly the same?

- As for sponsoring her brother (he will be 30+ age at that time), Is it a 'lesser priority' by US standard(i,e longer wait)? what is the average time?

Edited June 4, 2014 by semidevil

[Harpa Timsah 13,258]

Parent is like spouse. Your wife probably qualifies under the three years rule; look over the N400 instructions.

Sibling is the longest, the lowest classed category. It takes 15-20 years, give or take. Check out the visa bulletin and the F4 category.