Wedding after landing

[nimaoy]

Hello,

I have a fiancé and she is under his father entrepreneur application and they send their medical and waiting for visa....

we plan to marry after my fiancé land and then coming back to Iran, because if we marry before landing she lose her visa and so she can not sponsor me...

my question is : if we marry immediately after she land and then come back to Iran, embassy do not ask me why you marry as soon as she comeback and do not marry before landing? And can I answer because we know that if we marry before landing she lose her visa?

Thank you