How can my family attend our consular interview from different locations?

It is certainly more convenient for you and your dependents to attend the same interview at the same time. However, if you and your spouse enter the United States and immigrate, your unmarried daughter as your dependent under the age of 21 could subsequently file an Application to Adjust Status in the U.S. She cannot do so until you have been issued an immigrant visa and become a Lawful Permanent Resident. At that time, she must otherwise be eligible including having maintained her non-immigrant status within the U.S.

It would simplest to have your daughter fly out when the interview date is set to be interviewed together. However, if she cannot, your daughter could file the I-485 in the U.S. after you and your wife get your immigrant visas. Your immigration attorney should be able to guide you through this process.

You should all attend the consular interview; this will make processing easier.

Best to send her home and process the entire family together. She might be able to adjust status in the U.S. if on her own visa status is F-1 or a similar status.

You should be able to upon request. However, since your daughter is in the U.S., she may also simply adjust in the U.S. rather than travel back to India for consular processing. Advisably, consult with your EB-5 attorney on the merits of both options.

If you are in consular processing, you and your family must all attend the interview at the scheduled date/time. The NVC will schedule you and your family for the same interview date/time and you all must attend the interview.