I reread the email- they pulled her b/c of time and expenses and I guess she was one of the slower ones, so they decided to pull her instead of a faster one.
She'd be doing hunters (maybe some eventing) I've raised foals from birth to riding age, trained a few undersaddle, and retrained a problem horse (rearer) I'd probably start at square one (lunging/ground work) and work her up and maybe do some walking work under saddle until January, then start some other slow ground work. No jumping at all until 4, even then it would just be ground poles and cross rails. Nothing big until she was 5.
I am in no hurry to jump- I haven't ridden much since I went to college, so I need to build my muscles up to what they used to be before I can jump again anyway.

I really like her. I would definately get a vet check from a 3rd party vet.