Hey, a couple months back I sent a letter of intent to a school basically stating that if offered an interview and subsequently a seat in the class that I would turn down my other offers without hesitation. However, I recently got accepted to another school that I really didn't expect to, and would rather attend over the school I sent my letter of intent to. Would cancelling my interview (explaining reasoning in a formal/apologetic letter) at this point burn all bridges with this school? Would it prevent any opportunities to specialize there? Do schools actually remember names/keep records of these letters? Thanks in advance for any insight!