Ebook Proofreading (US English)

I’m looking for a careful proofreader to scan my ebook—currently a Microsoft Word document—for spelling and grammar errors only. Please keep the voice, structure, and style exactly as they are; all I need is a clean, error-free manuscript that meets US English conventions. Kindly work with Track Changes switched on so I can review every correction, and provide a second, final version with all edits accepted. If you have questions about ambiguous wording, flag them in a comment rather than rewriting the text. The file is ready to send as soon as we agree on timing. Let me know your expected turnaround and any experience you have catching those last-minute typos in book-length projects.