ayrazar said:An American citizen can stay for 6 months as a visitor. HOWEVER they can turn you away, or give a visitor record for less time. You can still apply for an extension with a VR tho. And if by then you've applied, you'll be alright.
My advice is bring proof she has ties to the states. Anything you can think of.
The only ties are her parents house where shes staying and bank accounts. Is that enough? Also what would you recommend how long i should tell them my wife is visiting?