Neutral English-Spanish Letter Translation

I have an English letter that needs to read just as smoothly in Spanish. The original is straightforward, and I want the translated version to keep the same meaning, flow, and a neutral tone—no overly formal phrases, but nothing too casual either... (Budget: $10 - $30 USD, Jobs: Castilian Spanish Translator, Content Writing, Editing, English Translation, Language Tutoring, Proofreading, Spanish Translator, Translation)