To ensure that signed agreements are not modified, Adobe Sign password protects them.
Adobe will allow you to change the password to one that you select. That will allow you to modify the documents. However, Adobe will discourage you from doing so because their goal is to ensure that signed documents are always bona fide.
To contact Adobe Support about this matter (because the Liscio Support Team should not know the password for your Adobe account agreements), please email email@example.com with the subject line: "Request to set custom password on sealed agreements" In the body of the email, you can add: "We would like to set our own password for our sealed agreements. The email address associated with our Adobe Sign account is: [enter email address]."