1. ポールは会計報告の裏面操作について知識があったので、その隠れた才能を発揮して必要なものを全て手に入れていた。
Translation given: "Paul's knowledge of creative bookkeeping has been the secret of his ability to get all the staffing he needs."
Does もの mean staffing (i.e. people) here? In the Japanese could it also mean any other (unspecified) things?
もの should be staffing but to me the translation itself sounds weird, as usually もの refers to things, not people.
But it really depends on the context.
2. ええ、茶わんを包んだり本を箱につめたり、みんなやって、しかも引っ越し先に着いたら、運んできた物を出して、使いやすいように並べてくれるんです。
Translation given: "Right. They wrap up the teacups and rice bowls, put books in boxes ... do everything. Then, when they get to the new place, they take everything out of the boxes and arrange them for easy access."
In the text, the 越 of 引っ越 has furigana こし, apparently making 引っ越し = ひっこしし. Is this a mistake? Or is 引っ越 really ひっこし by itself, with the second し having some other function?
引越、引越し、引っ越し; all of them are pronounced as "hikkoshi".
Often in case of noun, no okurigana is used and when it is a verb (noun + suru type), we add okurigana.
話 (hanashi, noun)
話し (hanashi, verb for te-form) <話す
3. ああ、いいわよって言いたいところだけど、だめね。
Translation given: "I'd like to say I'd help you, but I'm in the same boat."
What is いいわよって? I guess って could be quoting, but still I don't get いいわよ.
わ is a suffix often used by female, make it sound softer.
よ is also a suffix, to add some feelings.
よ[終助間助格助]の意味 - goo国語辞書
*see [1]
If it's いいよ, that sounds like it is something said by a man.
4. From a textbook note:
"The -eru of omoidasareru has the meaning of a natural, spontaneous reaction. Nakeru (started crying) is the same."
I thought 思い出される was the passive form of 思い出す. What does this have to do with 泣ける? Is it referring to some more hidden etymological connection maybe?
Here -eru means "despite onself".
思い出す to remember (often one try to do so)
思い出される to remember (something made one to remember, even though the one does not try to remember)
泣く to cry (be cause one is sad, unhappy, etc.)
泣ける to cry (though one does not intend to cry)