Right? Extreme obsession to detail like this tends to indicate psychosis.
And an inability to prioritize relevant information over irrelevant trivia as well.
My first (stream-of-consciousness, naturally) reaction was "She sounds like she's somewhere on the APD spectrum."
Is "Lack of empathy" a character trait you want in someone looking after children? Lack of sympathy perhaps, lack of empathy, not so much.
Her hiring (at a time of maximum confusion) sounds quite opportune, almost ideal if you were planning to hit someone with a large lawsuit later. How did she pick this lawyer for the job?
I smell a rat, and I'm not just referring to any hints of her former employers personal hygiene either.