I’m no linguistics expert (perhaps there are some in this august compendium), but it sounds like she is from Maine, or some part of it. Hers is exaggerated, but I think they all sound like that up there, ending their sentences like that.
I don’t know about Maine, but certainly a New England college like Babson, Smith, or a little west out in Ithaca or something. That’s college garbage, not adult attorney kind of speech.