Recommended but not mandatory: Create a new standard wallet with a new seed (do not use your 2fa seed) and send all of your bitcoins there.
Restore that 2FA wallet, but disable 2FA, and sending bitcoin in it to a new wallet (standard wallet, no 2FA) created by Electrum wallet software is one option.
Another option is creating a new standard wallet, then sweeping private keys of that 2FA-disabled wallet to a new wallet.
Even if he has a way to access the two cosigner private keys and redeem (
witness) script from the disabled 2fa wallet (
the GUI can only show 1 per address),
The problem is Electrum's sweep feature doesn't accept 'redeem script plus private keys' or combinations of public and private keys or descriptors to make sweep possible for MultiSig outputs.
This issue is open since 2019:
https://github.com/spesmilo/electrum/issues/5087#issuecomment-461759609"
Descriptors" should pave a way to do that and it's in the works.