Answer:
Since the check was altered (it was originally a $200 check and was altered to seem like a $2,000 check), then Susan cannot be considered a holder in due course.
A holder in due course of a check would be a person that receives a third party check in good faith without knowing any possible claim or defect.
If the check had been stolen and wasn't altered to change its value, then Susan could have claimed to be a holder in due course of the check since she was notified later about the theft.