How thoroughly refreshing to hear from someone who actually knows what he is talking about.
When I was a contractor, it worked like this. Whenever I was required to provide proof of insurance, I had to contact the agent or agency that provided coverage. THEY then had to mail the papers directly to the client. I never touched the papers, NOR WAS I ALLOWED TO. It went directly from insurer to client.
Copies are worth the paper they're written on, and make a little bit less than satisfactory toilet paper.
RUN from anyone who offers you copies. It just don't work that way. Unlessen, of course, you are gullible and will take this guy's word that the copy is good. If he has the proper insurance, it takes 3-5 days for you to have the paperwork in hand sent directly to you from the insurer. He never touches it.
Steve