If I am going for a second masters and my previous GRE score is expired, do I have to take the GRE again? I am already done with my masters but I want to go back to school for another one. The only thing is that I got my masters 9 years ago. I know GRE is only valid for 5 years. Since I already done with one masters, would I be required to take the GRE again if I want to go for another one?
Not necessarily.

I applied to a top department at an RU/VH university in the United States, and asked to have the GRE requirement waived for exactly the same reason, and they waived the requirement, and then admitted me to the program.

Ask the admissions office/committee if they will wave the requirement.