I have been tasked with taking a single domain with two sites and splitting them so they are no longer affiliated after a company sold off a group they no longer needed. Looking at the current config (physically in the satellite office) it has its own physical Server 2003 domain controller. DHCP is handled locally. There is a point to point vpn that establishes connectivity between sites. I see what looks to be complete AD, DNS, etc...
My question is how best to sever the ties between companies. I see many people say to not do this but to create a new domain and start over. Is there a way to simply sever the relationship and deactivate the VPN and then continue functioning?
I was directed to ADMT or Dells AD Migration software but without further handholding I am not sure what the process would really be.
Thanks in advance.