Can I send a demonstrated interest letter more than once?

Short answer: nope. Demonstrated interest letters are a one-and-done kind of thing. Think of it like a first impression—you don’t get a redo. Sending multiple versions can come off as pushy or, worse, spammy. You’re not trying to flood their inbox like a flash sale ad. You want to drop one thoughtful, memorable note that makes them go, “Hey, this student really gets us.” If you keep showing up with new versions, it starts to feel like you’re overthinking it (or panic-Googling at 2 a.m.). So make your one letter count. Say what you need to say—then trust it to do its job.