O-3 visa question

Nada Simunovic

New Member
My husband is going to change J-1 visa to O-1 visa. I am also changing from J-2 to O-3.
 Is it necessary for me to go with him to change my status or I can do that later on my own??
Also do you need to go physically or you can do that through the mail?
What is the waiting period for interwiev in Canada and Mexico now??
Anybody had a similar problem?
 Please help me.