To close CC or not?

[Seeker]

I understand that the cosigner can't add to the debt. What I'm wondering is if the cosigner's credit rating affects things. Isn't the whole point of a cosigner to grant the credit based on their rating since the actual applicant doesn't have a sufficient credit history to get the card on their own? If the cosigner's FICO drops, would that affect the account, raise the interest rate, lower the limit, etc?

Only up front. At the time of co-signing. Not later on.

Not unless daughter defaults and Mother is asked to pay.... daughter could further affect mother... but mother cannot do anything to affect daughter if she were a co-signer. Daughter would also very easily be able to remove Mom from the account at a later time.