If she is willing to claim Trump was a regular on the island then she will be absolutely safe.
President Trump probably has better records of his whereabouts from before he was elected than most people.
I'd bet that his corporate calendar has most of his time covered in meetings, site visits, negotiations, etc.
I'd bet that any claim they make can be countered with a Trump appearance somewhere.
And besides, by now it should be obvious that Trump has a "type," and it's not teenage girls.
-PJ