Guys,  I am in Client->(My Employer) EC model. I wanted to check for dropbox , last time i went they asked for only employment confirmation letter. but Today i am checking ustravel docs website it shows like this below:  Principal applicant’s employment  confirmation letter (original/copy) and end client letter from employer/petitioner. (Applicable for H1, H4, L1 Individual, L2)   I want to know if the employment confirmation letter is enough or do we need to take client l