u can edit export_desrc_buildings.txt so that when u upgrade the core buildings in ur towns ie, imperial place those ones, so that u get a law bonous when u upgrade them this makes it more realistic cos all the places u conquer start of small(usually) and as they grow u upgrade those builings and they increase law. THIS only effects law in the city making rebellions in ur city less likely i dont know how to make rebels stop appearing on the map or reduce the frequency of it. cheers