QUOTE(lilykouki @ Nov 7 2007, 03:27 PM)

We got married in September. He's a french citizen living in Canada for many years, I'm a US citizen.
After we got married, he had to go back to Canada to work and we knew it would have to be that way for a while. We are going to file K-3 when he returns tomorrow.
Now, we are hearing horror stories of being banned, etc. upon entering the U.S. and we are getting really scared! Is it wrong for him to come back here to file for K-3? We understood that was the option that allowed coming back and forth.
Please help, we are getting paranoid...
I am unsure whether you meant that your husband would stay permanently when he returns tomorrow, so have covered both scenarios:-
Your husband cannot enter the US as a visitor if the intention is to stay permanently (this is visa fraud).
If he is entering the US to visit and intends to return to Canada without overstaying his allowed visiting period, then he is allowed to visit at any point of the process (for either K3 or CR1). However, he should bring strong ties to Canada each time he visits incase he is asked by the border officers to prove his intentions to leave. The border is within it's rights to refuse entry to the US if it believes he is intending to stay permanently. It is your husbands responsibility to supply enough evidence to prove otherwise.
Hope this is helpful