AceBIT

What happens if I lose the List Access key? Is there a master key?

Without your Master-Key (you've called it List-Access-Key) there is no chance to open your password-list. The strong security and encryptions of Password Depot don't allow any acces to your password without your Master-Key, you've choosen at creating your password-file.

For security reasons there is no chance to open the password list from outside Password Depot.