Latifi

PLZ help me to have best design on my network My Servers : 2008 R2 I have 5 branch which is in 3 different city. currently 2 of the have physical connection with each other and 3 of the doesn't(now) I want to have 1 main domain in all my branch. I want to have full access(main admin) in my main office and each branch have own Admin(local admin) and local admin can control own local Domain. later on 3 other branch will have LAN Connection to each other. Each office have Local Domain server/DNS/DHCP and ... Shall I make Child domain for each branch? shall i install Child servers before move it to unlink office? Plz help me