Yes
Of course more than sure
Yes. Marlins Park has a designated pick up place for Uber/Lyft in the Eastern side of the ball park. It is near the 3rd base and Center Field entrances. The drivers and the ball park personnel know where it is and will help you.
Yes Marlins park has a designated Uber pickup point. See https://www.mlb.com/marlins/ballpark/transportation
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