I was speaking to a college-educated American woman in her 80s, born and raised in the metropolitan east coast of the United States.
We were on a new topic, and without any preceding context, she said:
Her accountant told Janet that she really ought to diversify her portfolio.
It's a very efficient construction, but I have never heard a native English speaker introduce a pronoun prior to its antecedent. For the first few words of her sentence, I was in some suspense, wondering what she was referring to.
I know that some other languages can introduce placeholders which get filled in later in the sentence, but I'm not aware of anything equivalent in English.
Is this a known construction among any segment of the English-speaking population?