Replaced `realPersonalContractingParty` with `legalPersonalContractingParty` to ensure correct variable usage in legal party operations. Updated the authentication logic to handle both authenticated and unauthenticated states, introducing a new `else` block for `LegalAuthentication`. Adjusted method calls (`UnAuthenticateLegalEdit` and `EditLegalPartyFromInstitution`) to use the updated variable and ensure consistent updates to legal party details.