Step-By-Step Decom Process Post O365 Migration.

Hello Geeks,

We have successfully Migrated to Office 365.

But still have Exchange 2007 & 2010 servers on-premises.

Would like to know the procedure to Uninstall them and also would like to manage them from AD.

So looking forward for information on:

1. Cutover process,

2. Dependencies need to be checked 

3. crusial things need to be taken care of.

Thanks,

Prashant