Rapid U.S. Proofreader: Grammar Polishing

I have a short document that just needs a sharp pair of eyes on spelling, basic grammar, and punctuation—no re-writes or heavy stylistic edits. Because the material will be published immediately after review, I need the marked-up file back as soon as possible, ideally within a few hours.

Please be based in the United States so the corrections reflect current American English usage. A simple Word file returned with Track Changes on (or an equivalent Google Docs suggestion mode) is all I’m after. If you’re available right now and can deliver a clean, error-free version without altering the tone, I’d love to send the file over straight away.