Taproot should make this possible.
You could specify multiple spending conditions each with some of the required keys.
Or even better, you could say A can only be allowed to spend if B can sign too (multiple keys) or C can always spend (master key) and any other key can spend as long as it gets signatures from 3 other keys for example.
Also much better privacy for the multisig quorom.
Probably something even better could be done with musig 🤔
What could a multsig of the nation state level look like using frost or musig??
#asknostr #musig #taproot #multisig #secp256k1 #frost