"Friend? Whoever said the Councilor was a friend? He's just a resource I plan on exploiting to get done what needs to get done." And here, Jons steps to the edge, turns to face the other two, and then drops down. Hands catch the ledge where he hangs for a moment, before letting go and landing on the ground just before the steps up into the building itself. A step or two back then, in order to give the others room to drop down themselves.
Once this is done, he'll speak again. This time to Solena. "And no, he shouldn't have a problem with it. I've gone back and forth through this thing a dozen times. There'll be an elf, one of Vanidor's, on the other side to welcome us. But he'll let us go on our way... As long as no one causes any fuss." This, again, will directed to Solena. "And once that's done, it's a quick jaunt to the edge of the province, yadda yadda. And then Underdark."