We have been asked to rebuild our active directory domain and we need guidance. We are being asked to build out a multi-tree domain structure now. We just bought 3 companies and each company needs to be a tree in a forest. We want an AD root level domain and we want each of our companies (including ours) to be one of the trees. We DO have an Exchange organization in our domain currently, but the other companies use Gmail.. When we are finished, they will reside on our Exchange organization. We really don't have a good idea of what we need to do, so I'm hoping that someone can provide some insight on how to do this and what steps should be done in what order. We have enough hardware to employ AD sites & Services and have a controller at each site. These sites are all connected via MPLS connections, so connectivity is reliable and fast. I also should mention that 2 of the domains we currently have use a .local for top level domain, so we will likely want to build out a completely new AD structure, as we do not want these .locals in our environment.