Regarding travel to canada

[gillboy12]

Dear Friends,
Need Help, My wife got w-1 visa last week so i just want to know when she needs to travel to canada, How long she can hold the fly to canada.
Thanks

 

[jddd]

Dear Friends,
Need Help, My wife got w-1 visa last week so i just want to know when she needs to travel to canada, How long she can hold the fly to canada.
Thanks

When is she required by the employer who sponsored her LMIA to be in Canada? They spent the money to get her the work permit so do what they say.