My husband claims he did not enter a password on his mother's return yet It asks for a one and we cannot access it. He has been asked for receipts needs the information.

I entered a password in one file. would that block all returns done in the same program?

Getting started

Opting to password protect one of the returns won't automatically password protect all of the returns.

https://turbotax.community.intuit.ca/replies/2647721