[X] Hire Yrten to spend a day looking for targets for you to hit (he gets 5% of the loot if his intel is good), while you meanwhile go to kill the garrison of a Salamander place to encourage rebellion. Try to hide the fact that a Dragon did it.
-[X] Make a better deal with our new friends:
-[X] They can use our port as a friendly one and trade there as long as they follow the local laws. We would appreciate if they gave us first buy to any truly crazy artefacts they found - we'd offer a good price for them. Oh, and we'll buy stuff like Efreet military hardware that would otherwise be hard to sell on this Plane. In exchange we'd prefer if they didn't trade with people on our Plane that we are currently at war with.
-[X] She can access our library and learn any spell we have in scroll form on condition that she herself offers us a scroll of a spell we don't have or a lore book we don't have whenever she does this. She should be able to get extraplanar books easily enough, you see.
-[X] We'll sell her our "break a devil from Hell" ritual. In exchange we want her to craft us an item of at-will Glimpse of Truth, a level 3 [Evil] Divination spell that answers Yes/No questions reliably. She's a Hellish Wizard, she has to know it. Oh, and it can't be getting the answers from Mammon please
They'll give us intel about the situation on the Plane of Fire, especially good targets or targets to avoid. In exchange we'll give them 5% of any loot we get from one of those targets if their intel was good.
-[X] They'll go after targets that more directly harm the Efreet. In exchange, they get 90% of what the Shaitan would pay us. They can also call us in for help in case they find an awesome target again, but then we'll claim part of the loot. They can also call for a few more 6th-circle spellcasters (or equivalent), in which case we'll take some loot but less than 50%. We give them a Sending stone and an Arcane Mark to home in on. We reserve the right to not come if we're busy.
-[X] They'll help us recruit more pirates or settlements for similar missions. For each one they point us at and give us intel about that ends up joining us, we'll summon one of her devil friends for her (as long as it doesn't serve Mammon). We have state-of-the-art summoning facilities, after all... If they do the recruiting themselves, then they get 100% of what the Shaitan pay us for that month/year/whatever interval the Shaitan pay us at.