Disclosure: I am not a professional editor, but I do have a higher education (a 2-year business degree). I enjoy editing in my free time and consider myself adequately self-educated in grammar.
I edit using Google Docs. I strive to return documents ASAP! I explain each edit.
What I edit:
#1 Grammar - Punctuation, run-ons & fragments, subject-verb agreement, tense, pronouns, modifiers, diction.
#2 Dialogue - Does it sound natural? Is it punctuated properly?
#3 Passive voice - Are you using active voice when possible?
#4 Show, don’t tell - Are you showing your story or telling it?
#5 Plot holes & general feedback - Does your story make sense? Are your characters believable?
Payment is giving me credit in your book’s description or in an author’s note.
If you think you might be interested, check out my advertisement book Kait’s Editing Shop on my profile @surendxr for references & more info! Or send me private message.