First, Guildhest is different from Guildleves. You don't need Guildleve allowances to do Guildhests, and you can activate a Guildhest through the Duty Finder without having to go talk to a Guildhest NPC. New Guildhests will become available as you clear prerequisite Guildhests, or reach the minimum level for them, or perhaps both.
Levequests (which are Guildleves) are specific to the camp. I've seen 6 different Battle (for DoW/DoM) Levequests for a single level range from the same NPC, though only 4 of them will show up at a time. If you complete one of those Levequests, it disappears from the list of 4 and gets replaced with one of the other two you couldn't do before. I don't know if it's always 6 possible levequests per NPC, or if some have more and some have less.
These levequests automatically become available when you hit the minimum level for them. The only thing you have to do to unlock Guildleve access is to do an introduction levequest at a new camp. Not every camp will require it. I think camps in the same zone may be unlocked together (e.g. the two camps in Central Shroud).
Hmm, I turned in a Alchemist quest, dressed as a THM, but it gave my Alchemist the exp. So maybe they fixt that?
I don't know what they allowed during earlier phases of Beta. But at some point during Phase 3, I recall that DoH levequests always gave the exp reward to the class that is needed to craft the item, regardless of the class you were at the time you turned in the item.
With DoL and DoW/DoM levequests, I assume that changing your class after you complete the levequest but before you get the reward will either cause the levequest to be abandoned or the reward will still be given to the class you were on when you initiated the levequest.
Lyonheart, like Eorzia, will be reborn in FFXIV!
FFXI veteran (Lyonheart and Lakiskline of Lakshmi)
1/467 on signed HQ Weskit!!!