I've been a middle manager for a large company for over 10 years. As part of my job, I've participated on hundreds of search committees, meaning that I have reviewed thousands of resumes and cover letters. As a hiring manager, I can tell you that a decision is made whether or not a candidate will be brought in for an interview in less than 30 seconds. Some absolute deal killers include: Typos, poor formatting, too much or too little detail, poor attention to detail, etc. I can bring to you the editing eye of a person who has looked at other people resumes for years and thought, "Gosh, if only this person would have paid more attention to their margins and run a quick spellcheck, I would be much more impressed!" I'm happy to help all the way from just giving your resume and cover letter a quick once over, all the way to writing from scratch.