Does my fiancé need a Thai bank account for a Nonimmigrant type O visa after marriage?

Does my fiancé need a Thai bank account to get a Nonimmigrant type O visa once we marry? Is that only required later on after he gets the initial 90 day entry? If it’s required, how can he open the bank account without a work permit? He’s currently here on a tourist visa, and we’re getting the marriage certificate before he leaves. We’d like to know if he needs to also open a bank account before he goes, and if so how? When he comes back again in a couple months he’s planning to move here, so we’d like to get him a Nonimmigrant visa instead of another tourist visa.