I have read through your project description and it is quite interesting. British English is my official language; I write and speak it. I am a very proficient writer and an editor. I have all it takes to execute this project to your ultimate satisfaction. Having won some proofreading and writing competitions and completed a lot of proofreading task (thesis, dissertations, projects, manuscripts, essays, ebooks, articles, novels, journals, newspapers, website contents, white papers emails, etc), I will definitely be the best freelancer to proofread your document based on the deadline provided. I will also provide "comments" if the need arises in the course of proofreading/editing your document. Do contact me.
Here are a few links to my accomplishments
https://www.freelancer.com/contest/Proofread-on-product-Website-1196685.html
https://www.freelancer.com/contest/Quick-contest-tell-about-your-experiences-working-as-an-online-freelancer-502299.html
https://www.freelancer.com/projects/Proofreading/Proofread-Something-11242228/
https://www.freelancer.com/projects/translation/Edit-texts-about-ICO-blockchain/
https://www.freelancer.com/projects/php/would-like-hire-Editor-14615310/