How to change guild faction?

Can you change to kurzick if your guild still has luxon standing? My guild has all the npcs in the guild hall and we dont want to see that go down the drain. If you cant change until it is gone is there a way to donate kurzick faction to make it go down faster?

I wouldve searched but it is broken.

You can change even if you have some of your current faction left, you just automatically lose that faction.

Oh, I was in House and some guy was complaining that it wouldnt let him change. Thanks for the help.