Well, I am kind of free most of the time, and I edit too, so yeah, I can probably do it better.
Of course, I will use Word for the purpose, but I would recommend the use of Google Docs, as you can keep a track of what I am doing and see whether I'm fit for the purpose you seek. I do a pretty good job of grammatical correction, if any, and can help in any other editing required. If that's all you require, then please do contact me.