The big issue for me is that we're at peacetime, and I still have to wait the 30 days to leave without penalty with that mod. Even in the base game you should be able to leave without penalty if at peace
As in the title, there are multiple issues with Mercenaries leaving service.
First off, all the dialogue is identical to giving up your oath of fealty as a vassal, which makes no sense. This applies to leaving in person, or through the (K)ingdom screen. Second, the relationship penalty hit is...