Can my stepchild study while she is changing visa status (from B2 to E2 depensdant?)

While a child's going to school may have a negative effect upon a change of status to F-1 student, I do not believe that there is a prohibition against allowing a child to go to school while changing to E-2. You may, however, have to convince the school district to allow your stepchild to register. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.