Anybody know starting factions for eru sk?
 

As in which sk guilds are open to me for quests as a 'Heretic' of Paineel - FP and Qeynos I'n sure of, but neriak, grobb, oggok? I know eru has the lowest faction grind for iks(because of deity) faction.

You should be allowed in Paineel, Freeport, FV, Neriak, Rivervale, OT outpost, High Hold, and are dubious to Erudin. You'll be KOS in Qeynos (until you grind some gnolls IIRC) Ak'anon, Kaladim, Felwithe, Cabilis, Kelethin, Oggok, and Grobb. Can't remember about Halas or Surefall Glade.

Even if you aren't KoS to the guards in the above mentioned cities, some NPC's and guilds (cleric/pally, caster etc) will be KOS, so tread very carefully in even friendly areas.

I'm pretty sure that's largely correct. Someone correct me if I'm wrong.

FV and Rivervale(the Stormreapers for sure) should be KoS as well as Halas and Surefall, Qeynos guard faction can be raised by killing the poachers in Tox(they are on karana banit faction).