@mikeymikey The big problem is with the owner account, since there can be only one.
We can easily share the password for the account with specific people via 1Password, but the MFA is the catch. We once had an issue where the single person in IT who had access to the only phone set up to receive 2FA codes was on extended leave. I spend a good chunk of time while at MacTech that year working through an account recovery process to accept an updated agreement and unblock on iOS release.