朋友手头有H1B petition批准的时候,律师寄给他的一整套H1B的申请资料的复印件,其中还包括了封律给他的cover letter。朋友会请雇主给他写一封support letter给签证官. --That is enough. 如果不专门做律师的certified copy,大家以为如何? -Absolutely not need this kind of copy.