I spent many years as a professional editor before going freelance. I excel at reframing content without losing its integrity or altering the voice in a given piece. Spelling, punctuation, verb tense, all of these things are very important to the reader. Making sure they are correct allows the reader to establish trust in the information being provided and with who is providing it. You can be the most honest and sincere person on the planet, if you're copy's not tight, though, it's going to be hard to prove it in print.