This mod adds a black horse courier at the topmost floor of the Leyawiin Fighters guild. Reading it will enable a script (don't worry, it runs a check to see that you completed "The Hist") which disables the corpses (don't worry if they already disappeared, it doesn't hurt your game) and adds a bunch (5 to be exact) new BWC members, and removes the hatred from BWC members so they won't attack you on sight anymore.

POSSIBLE INCOMPATIBILITIES

Obviously "Blackwood Company" mod, but since it doesn'f fiddle with existing members it shouldn't hurt it, it just won't work

WARNING: I've fiddled around with the door to the training hall (gave it a reference ID to unlock it). It shouldn't but it CAN make some problems during "Infiltration".

Basically, better activate this mod after finishing FG questline.