Exchange server 2010 checklist for taking knowledge transfer from client

Hello Everyone,

I have been assigned to get KT from a client for MS Exchange 2010 technology for a new project.

How to get Exchange 2010 Knowledge Transfer (KT) from a client & What information should I must get during KT process?  
What Documents or CHECK LIST should I follow to make sure that I will be able to get ALL INFORMATION related to Exchange 2010  from the client ?
Urgent requirement and quick reply with proper and actual exchange KT related documents & Checklist / Excel Sheets will be highly appreciated.

Thank you.

Sujitraj Sancheti

Thanks and Regards - Sujit