-Attentive reader, I often find myself correctly anticipating the action of a story.-Vast amounts of spare time
-Perfectly willing to work retroactively or even go back and just do editing work on a completed story (especially if it's one I haven't read).
-Quite patient and legendarily even tempered (easy to work with)
-Acceptable level of grammar ability, Eng 101 was something I tested out of back when I was in college. So the appropriate use of punctuation near mid-sentence parentheticals isn't really something I'm up to date on but I'll just tell you not to use parentheticals outside of your A/Ns anyway. It makes you look like a poor and uncreative writer.
-I'm still blessed with a rather good memory so I'm quite capable of catching those pesky continuity errors, from the simple mistake of a name spelled differently to the disastrous plot hole; if you need help with this I'm your Butterup.
-I'm in possession of a more than modest amount of skill at describing the connotations of certain words and picking the most applicable choice off a list of synonyms based on context.
-I have a very good Thesaurus in my brain, that kind of links in with the last point. I've also never used an actual Thesaurus, I've found people who do rely on that particular tool tend to use the words they've plucked from it incorrectly for some reason. It also tends to look rather obvious and forced. I can help you with good word choice without making it seem overly played up and pretentious.
-The things I just said I'm good at are coincidentally the things I notice people doing wrong the most often in fanfics. As an aside, if you actually believed that would a coincidental thing and cannot seem to figure out what the joke was in that statement even after reading this and having time to think about it then you're probably the sort of person who could benefit from my help.