[X] In no particular order:
-[X] Hey, does she have a cell number, or an email address you can reach her at?
-[X] Ask her about magical girl current events. Anything interesting? Anything potentially dangerous looming?
-[X] Ask about the oldest magical girl she's heard of, and how old is she.
-[X] Ask about magical girls whose magic allows them to manipulate the soul. You have a source who indicated one would be coming here soon, and you want to know more about them, if possible.
-[X] Ask if she made all the enchanted items on her, or if she purchased them, and if the latter, how does she keep them charged.
-[X] Ask her if she knows of any magical girls who are fluent in Japanese, are decent people, and have any of the following powers:
--[X] Long-range teleportation or portals.
--[X] Any sort of danger sense that can be used to find threats to other people before the occur.
--[X] The ability to enhance or amplify the magic of others.
--[X] The ability to protect the minds of others from being tampered with.
--[X] High-end healing abilities.
--[X] Anyone who is particularly skilled at enchanting.
-[X] Ask if she knows anything about the magical girls in Asunaro. It's a silly place, but you think you need to know. For reasons.
-[X] Ask if she knows anything else that might be useful to know for a girl who wants to help people.
[X] Muse aloud about how you've kinda thought about hiring her to serve as a diplomat of sorts to other groups, but since you'd give her a clear seed and clean her soul gem anyway, the only thing you'd really have to pay her with is "borrowed" yakuza gold, and that's not any fun.
-[X] That reminds you, you should tell Sayaka about the mop.
[x] Wacky hijinks aside, you're idealistic, not stupid. This is serious business.
-[x] You're essentially proposing to create a small nation. Even with cleansing dealt with you'll still have to keep the peace. Keep hunting witches, integrate with the mundane economy, put past grievances aside and carry on with their lives, girls that are too traumatized to function...
-[x] You can probably police Mitakihara up to several dozen girls, but to really scale you'll need to find more people like yourself and your teammates. Girls that are skilled, capable, motivated, and, above all, moral.
-[x] You'd like to hire Bennouna on - real-money compensation - as a recruiter and diplomat. Anyone that she meets that you should talk to, you'd like her to put you in contact with them. You can supply money to put them on planes to you, or you can fly out to meet them.
-[X] Ask about magical girl groups that are particularly large, powerful, influential, or nasty. You know you're going to cause some waves with your offer of cleansing and clear seeds, so you want to know about groups that might cause issues. (By moving this behind the smash-cut and away from brain damage we make clear that this is an issue we take very seriously. Obviously we take all issues seriously, but there's an advantage to making the smash-cut first; she'll be inclined to respond in kind.)
-[X] Ask if she knows any magical girls who might be willing to travel to Mitakihara to fight a city-destroying witch. (I'm inclined to agree with Kaizuki that this is also an issue we should present seriously rather than flippantly, if only for Homura's sake.)