ADFS with EV SHA and DA client

Hi,

I want to setup ADFS between two domain Active Directory domain.

Client A enviroment: 

Exchange server (SMTP Journal Archive), AD (user object and exchange object), Sharepoint farms, DA clients

Client B enviroment (hosting EV services):

Different AD domain, EV servers and DA server

Client A want to have this setup due to IT security requirement, and they want to have ADFS to provide SSO for DA client access to DA server, and EV server SSO to sharepoint farm for SHA. Is this possible? no user items retrive/restore from client A enviroment.