It
is not a legal requirement that a witness sign the documents. A witness purely
witnesses the signature of the document and not the content.
Through the two
phase authentication method, you are assured, it is the correct party that has
signed the entire lease agreement.
The "sign" button will only show once the entire document has loaded so you can be assured that the person signing has had access to read and review the entire document before signing.
The witness box is completed with the text "Electronically Signed" as per the screenshot below