If she’s actively looking for a job, spelling and grammar are the least of what she needs to go over with a fine-tooth comb.
Presumably you talk to her about her job search. Given how much the economy (still) stinks, you can and should emphasize the point that hiring managers are looking for any excuse to winnow down that pile of 300 resumes for one open job. Can’t be arsed to proofread? That reflects poorly on her attention to detail and dedication to something that she ought to have a lot of personal investment in, her livelihood. It’s going to come off as a “meh, good enough” attitude whether she intends it or not.
And while she’s correcting typos, she’ll need to look at how she sells herself in her resume. Is she using strong action verbs or just typing “responsible for X”, “responsible for Y” over and over? Does she give concrete examples of accomplishments on the job that made her employer more efficient, saved him money, cut his costs? Anything she can put actual numbers to? Does she include a summary (not an “objective” – an employer doesn’t care what you want out of a job, it cares what it wants out of an employee) which describes her greatest strengths as an employee and how they’re beneficial to an employer?
There is a TON more that goes into a resume than just listing previous jobs and running spell check. She needs to spend a few hours on it to shape it into what it needs to be. It won’t help her if it’s just slapped together and will probably sabotage her instead.
It’s not necessary to hire a professional – all this stuff can be found online. But she does need to invest the time, which she’d need to do whether she hired someone or not. A pro is not going to know what she did at her previous jobs unless she’s capable of describing it to them – which is exactly what she need to do on her resume for the hiring manager.
PM me if you’d like to see an example. LinkedIn is a little different than your standard “paper” resume, and has some other features she could easily be taking advantage of, too, such as being able to post write-ups/case studies of specific projects she’s worked on – GREAT for demonstrating skills, competency, and results, which is what employers look for. Also, asking for and getting recommendations from people in her network. And then having at least two other people proof it again once she’s done – when looking at it so long, eventually you just see what you intended to type, rather than what you did.
Anyway, I can’t imagine this even being a question in a half-decent relationship. (Then again I wouldn’t last long in a relationship with someone with such a frail ego that she couldn’t handle some constructive criticism – that’s part of being a professional and an adult. YMMV.) Elaborate lies (as proposed by others) seem pointless if you want a successful relationship.