As a proofreader, it’s my job to go through your writing and show you where it could be sharper. I will check spelling and grammar, including subject/verb agreement, stray punctuation, extra spaces, missing spaces, dangling participles and wandering clauses, and all other technical errors.
I will also look for places where your writing is confusing or unclear, focusing on passive voice, awkward phrasing, and other things which make your writing look and feel less than perfect.