As far as I can remember you started a topic a while ago about your step-daughter who would like to continue her studies at a local university. If you got in touch with their admission office and looked into their requirements for transfer students, your step- daughter should prepare her papers accordingly. E.g., she may need to bring her transcripts in a sealed envelope or she may have to leave a prepared envelope with her friends in Ukraine to be sent from her Ukrainian university “directly”. In case she decides to apply to a few colleges in the US, there she should make a number of copies of her transcripts and read instructions on each website very carefully. Also, she may need to think about her letters of reference while she is still in Ukraine.
Your wife may also want to bring her university transcripts with her in case some agency in the US would like to see them (e.g., a college or an employer.) A couple of letters of recommendations from her Ukrainian bosses won’t hurt either. It may help her when applying for her first job in the US. Then, it would become irrelevant as her future employers will consider only her American references.
If your wife and step-daughter have international driver’s licenses, they may bring them too. You have to look into your state requirements for out-of-state drivers on your DMV site.
I don’t know what documents should be apostilled (sp.?) as I didn’t do that myself, and I never faced a situation when an apostil was required. At the same time, proper (=Americanized) translation of university transcripts is very important.