Take your typical Necromancer- able to raise/control/talk to corpses, summon/bind ghosts, wither an organism- things that revolve around 'death' as a theme, as opposed to manipulating life/death energy or just a specialisation of magic. Assuming that they don't have access to human corpses, what could the modern necromancer do to make money? What niche markets exist that a necromancer could fill?
For the purposes of the answer, assume a ghost's memories fade over time, there is a generic, cave-like underworld where ghosts without 'anchors' get sucked to and necromancers can access and that necromancy is legal- but messing with a human corpse is still highly illegal. Necromancers are born as such and there is no way to 'create' a necromancer. While resurrection is impossible, they can bind a ghost into a human corpse- but this takes a lot of bureaucracy, weekly hour-long 'repairs' and generally only lasts about a year. The setting is 2015 with our tech levels.