I am a conditional resident and getting ready to file I-751 in September. My sister who lives in Europe and has never been to US would like to come visit for 2 weeks in August on a visa waiver. Could that have any effect on my I-751 application (which I will file jointly with my USC hubby)? I probably worry too much, but I just don't want anything to go wrong with my application. I have not left the US since becoming a CR. She would only visit and then go back home. Thank you for your help.