I am working here on H1B, my father is still working in India for Government Judiciary, my mom is a housewife and my sisters are unmarried, one is still finishing her studies and other one done her graduation (not willing to work either in India and here).
I am in my 6th year of H1B expiration and before it expires, I am planning to invite all of them for a temporary visit to look around places during summer time.
My father government judiciary organization approved his leaves to visit USA and they don't have any issues with him or his family visiting USA.
Now, I am planning for a Visitor/Tourist visa interview for my father, mother and my two unmarried sisters. Can someone please suggest how should I proceed to have better chance of getting a temporary visitor visa B1/B2 for all?
Some people suggest they should appear for visa interview all together, some suggests - my parents go first and then sisters, and some suggests my sister go first and then parents?
Very confused. . .