Key Letter From Applejack to Celestia Regarding Charlie Yu · 1:39pm Aug 14th, 2015
This is the letter that got Charlie Yu his job at Sweet Apple Acres in the first place, when he was previously being supported by payment from the Treasury and his life administered by Twilight Sparkle. It obviously pre-dates An Epistolary Legal Consultation Between Princesses by about half a year.
Dear Princess Celestia,