Which of these quotes with a subordinating adverb is punctuated correctly?

Even so when I was invited to attend an important author event on the East Coast; a friend took me in hand.
Even so when I was invited to attend an important author event on the East Coast a friend took me in hand.
Even so, when I was invited to attend an important author event on the East Coast, a friend took me in hand.
Even so, when I was invited to attend an important author event on the East Coast. A friend took me in hand.”

Question

Which of these quotes with a subordinating adverb is punctuated correctly?

Even so when I was invited to attend an important author event on the East Coast; a friend took me in hand.
Even so when I was invited to attend an important author event on the East Coast a friend took me in hand.
Even so, when I was invited to attend an important author event on the East Coast, a friend took me in hand.
Even so, when I was invited to attend an important author event on the East Coast. A friend took me in hand.”

anonymous · Answer

r u giving a medal and fan to who helps u