I would like to have both 2-of-3 multi-signature and no address reuse. For example,
3 BTC belong to multi-sig user1 (Officer),user2 (Manager), user3 (CEO) (2of3 multisig) with pubkey1,pubkey2,pubkey3. They send 1 BTC to user 5. Assume zero fees. The change of 2 BTC should be sent to user1,user2,user3 (multi-sig) with pubkey1.1, pubkey2.1, pubkey3.1
Well, this is easy to say here! but
In real life, how do the users in multi-sig coordinate their next pub key? Would it be a coordination nightmare? What happens when one of the user (CEO) always not available for any communication? We will be stuck with an old Public Key for (user3)? Is there any automatic coordination like BIP32 ? etc.