Apologies if this is a known issue, but I think I found a bug with the "Bottle of Red Wine" quest giving extra faction hits.
http://wiki.project1999.com/Bottle_of_Red_Wine
I turned in a few stacks of Red Wine to Lokar To'Biath to raise my faction a bit in anticipation of doing Hukulk's Love. I went from Apprehensive to Amiable with Lokar, as to be expected.
When I visited the guildhall of The Dead (Neriak's Necro and Shadowknight Guild), I found I had
also gone from Apprehensive to Amiable with all the trainers. I was able to engage in quest dialogue with Loveal S'nez I was previously unable to do so.
According to the reward dialogue at turn-in, no The Dead faction should be given. I don't know if the trainers are on the wrong faction, there's hidden rewards from the quests, or if The Dead just like me because I'm level 20 now or what.