The old days, we used to code accounts that require two signatures on checks and manually review checks to ensure checks are signed according to these instructions.
We want to discontinue this service.
We have legacy accounts showing this on resolutions and sig. cards.
We want to advise customers that we can no longer provide these services.
Can we simply send a notice out or are we stuck with the legacy customers?
New customers may still want to have resolutions that say two signatures. That's fine but are we liable if we don't actively review checks to ensure they are all signed accordingly?
If you've handled this recently, how did you do so?
Thanks.

It appears that you would have to send out notice, change the verbiage in your account disclosures and most likely update the signature cards where it indicates the need for 2 signers. Sounds like a fun time

...and see if your account agreement grants you the authority to make this kind of a change. You contractually obligated yourself to when the account was established under these terms. The Uniform Commercial Code will hold the Bank liable for paying a check that is not properly payable according to the account agreement. You account agreement likely does not give you the authority to modify the contract in this way without the customers' consent meaning your only remaining option would be to terminate the contract (i.e. close the account) assuming that the customer does not provide consent.

Of course, there are some institutions that have chosen to create a service fee to monitor for two signatures. Your contract is more likely to permit a change to the account fee structure so the imposition of such a fee may motivate some customers to permit the contract change.

Which one? - change your account agreement or start a two signatures required monitoring service.