I'm coming back Saturday on my current DN visa. It expires 4/1/19. As soon as I get back I'm getting a DT (business investor) visa. I am not coming back to the US until 5/1. Will I have to do a border run after I get my DT visa and go out of the country on the DN visa I came in with and then back into the country on my new DT visa? I can't come in on one visa and leave under an overlapping visa, correct? Would be nice if I could.
One other thing, I'm getting my DT visa from an agent there that is friends with my business partner. I know that his day job is "with the government" but beyond that I don't know what he does but he's somewhat connected. Is there any chance that he can get me stamped in on the new visa if I'm already here on another visa? Just trying to avoid a border run as unlikely as that seems.