Aaah, editors (and proof readers)... expensive but frequently essential.
We spent thousands of dollars and that was a "medium priced" editing.
Despite all that, it wasn't until it hit print that we found another 10 or so mishaps in a 380 page / 200,000 word book. Considering it was our first book I'm quite pleased overall as we were rather distracted learning all the in and outs.
Perhaps the worst thing you can do is edit your own work - you're effectively too blind to see anything.
Good luck however with the editing
http://elitadaniels.com - Tree of Life (Part I).
They shall age like us; they shall die like us