sounds like a few different issues.
test the brakes by lightly pressing the pedal, just enough to feel feedback but not really enough to stop. does the pedal pulse?
then push a little harder, and a little harder in different attempts, how does the pedal and car react?
the ball joint you might feel especially if you cn turn it by hand.
what kind of shaking is it? the steering wheel while driving? the whole car? does it happen at stop signs, lights? etc?
at 60k miles has she done the timing belt? it might be out of time? it is due for a replacement.