Hi,
I'm interested in helping you with your novel. What's it about? Please provide the word count for an accurate bid.
There are different kinds of editing; proofreading is done once all your revisions are done, just before publishing; beta reading is something different again - non-professionals read and give feedback. When I edit, I do a thorough job addressing all issues to do with grammar, spelling, punctuation, etc., and all the elements related to story structure, character development, etc. I do this for a flat rate based on word count, not an hourly rate. You would still have to have it proofread after your revisions.
I'm a university-educated native English speaker. I have lots of experience - writing, editing, teaching creative writing & doing manuscript consultations. I would use track changes and offer comments.
Please see the reviews and portfolio on my profile page. I can send you a list of edited projects and/or direct you to some of my work online if you like.
Thank you.