Switching GC's

[KazuneHypnotik]

I am completely lost when it comes to this but am I able to switch grand companies? If I am, will I lose anything like rankings and what not? If I can then how do I go about switching.

[Amiaze]

Yes, you can switch Grand Companies. Your ranking and points will be reset to zero for your whichever Grand Company you go into, although you will retain your rank for your current Grand Company if you ever switch back. There is also a fee and timelock associated with it, depending on your rank, so you can't switch too often.

I can't remember who you speak to to leave your current GC, though.

Edit: I'm pretty sure you lose all yours seals, as well.

[Twilite]

You can change back after 15 days.

[Kerii]

Just go to the office of the grand company you wish to swap to and interact with the Personnel Officer. The first change is free, but swapping after that costs 50k and there's a two week waiting period before you can change again. When you swap, your pvp ranks/skills are reset and you can't equip the old gc's gear/weapons and if you had a chocobo barding from them you'll have to get the new GC's iteration. No seals are lost, and you will retain your rank if you change back.