Do we have to claim a specific character or pairing, or are we allowed to claim "General Series" for a specific book/movie/tv show?
Reading rule #8 should answer this clearly, but for those of you who somehow still missed it, the rule states, "Claims can be a single character, a pairing or threesome, a group within the universe, or an entire fandom." General Series would be the equivalent of an entire fandom.
Also, how many claims are we allowed to make at one time?
Right now, there's no limit. I do ask that you try to keep up with all the ones you make if you make multiple claims, rather than sitting on them until the last minute.