[X]Plan Scheming and Plotting, The Westerosi Way
-[X] If it wasn't already obvious, the deal for formal and informal obligations towards us in regards to Black Walder is, he helps us maneuver and prod his relatives in beneficial directions, supplies us the information we need on them, and of course continues doing good work in the Riverlands drawing order from chaos with the Lads, and there's almost certainly lordship resting in his future somewhere. Barring any... unchancey happenings.
-[X] Tell us about the Freys. No, not all of them, we'd be here forever. Who's erudite, with a scholarly mind and more importantly with the right combination of actually being capable of en-kindled loyalty as well as an open mind? Chances are we won't offer half as many places in the Scholarum to Lord Frey as he desires, nor to some of the more maladapted or manipulative ilk, either.
-[X] Squirings and Wardings. Honors. What that says about Lord Frey is that he's still one of the Old Guard of Westeros, and unlikely to change too soon. Still, he's more open-minded than most, which is saying something. It costs us little except rude talk by disgruntled Lords, but you don't want to surround yourself with dozens of Stoats, either. Ask about a few of the younger Freys. The ones who can still be... moulded to our purposes.
-[X] We won't countenance talk of lordships when the board is still in motion and loyalties are still in flux. The corollary to this if pressed is that they should be of a mind to develop their own lands, which they will need all resources including manpower to do as it is. It's too early to talk details, but the Freys will be one of the great winners of this, that we will make sure. The list of vassals Walder Prime has in mind sounds like a good working draft, though he isn't getting the Tullys. That would just perpetuate the unrest in the Riverlands. But don't worry, the Tullys will get what's coming to them.
-[X] Get an overview of their lands, Black Walder seems insightful enough to understand what we're working with. Then grab a dozen economic advisors (because these days you just have those) and draw up an outline to help develop the region economically, contacts with the Iron Bank, your trading conglomerate for shipping and manufacturing, whatever might be necessary to roll out the changes in a timely fashion post conquest. Then dicker over the ultimate cost. You can subsidize with the best of them, but when it comes to taxes, the dragon gets its due.
-[X] Part 2
--[X] We want to build many bridges throughout the Riverlands, but just baldly saying that might decide whether the Freys will rouse for Robert Baratheon or Tywin Lannister alone. We still are going to do that, but we lead in with the offer to help build a trade harbour right next to the Twins. This would help the Freys retain their current status as a crossroad for Westerosi trade, with goods moving up the Trident and its tributaries from the Saltpans, which are then unloaded at the Twins and either shipped on to the North or the short stretch to Seagard, before being loaded back on a ship and moved across the Sunset Sea.
--[X] It also follows that from such a crossroad a major population center might form, and while they will not be the only House to receive a charter for a city, they will have that to look forward to. Being more relevant in local politics than the Tullys has to serve as somewhat of a balm, at the very least.