You wrote:
“... then perhaps you can explain Chapter 16 of Romans...?”
What is there to explain? Paul had never been to Rome and did not know the Roman Church. He did know some members whom he sent on ahead.
Again, what is there to explain?
v,
1. He didn’t send them all ahead
2. He knew at least 28 by name
3. Those are just the ones he mentioned
4. You specifically said he didn’t know the Romans
He did.
That’s all.