Network Setup Recommendations

I hate when people ask these type of questions but I need to ask one. We have two clients that are separate businesses but work together. They have two seperate domains, two domain controllers, different programs, one subnet but they share some files. They also have Unifi disk that at both locations and controlled by a workstation at the main location.

They have two locations which are both shared by the businesses and connected via point to point.

The network is currently a huge mess with static IPs, local user accounts with admin as the username and password, and a subnet that doesn't allow for growth and is causing issues.

What I would like to do:

1. Put the two domains on separate subnets and have another subnet for the Unifi APs. I would presumably use the Juniper firewall to route between the two subnets.

2. Make sure all the computers are set to DHCP via their respective domain controllers.

3. If users from one domain need access to files on another domain they will have a domain account setup for each domain to be used to access the shares from the other server.

4. Use another router to be the DHCP server for the Unifi disk that are only used for a guest network and hopefully this will work over their current point to point connection.

5. Setup all the printers and mapped drives via group policy.

6. Painstakingly go around and migrate all the users data from the local account to the domain accounts.

7. Setup password requirements, lockout times and anything else that is required to meet HIPPA compliancy.

I have it mostly figured out but am completely open to ideas, suggestions and best practice suggestions. Looking forward to hearing from everyone and again, sorry for asking a long and ridiculous question but I want to make sure I am on the right track before I tear apart their network.
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Skyler KincaidNetwork/Systems EngineerAsked:
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Dirk MareSystems Engineer (Acting IT Manager)Commented:
If you are still going to use two separate domains you would need to setup a trust relationship between the two domains to allow domain users access from the one domain to another.

Also if one of the domains are running SBS, you won't be able to setup a tryst relationship.. Part of SBS limitations, not sure if that changed with later releases of SBS.

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Skyler KincaidNetwork/Systems EngineerAuthor Commented:
Oh yea great idea! Thanks for reminding me about that.
Skyler KincaidNetwork/Systems EngineerAuthor Commented:
Thanks for the comment! I know it was one of the long annoying questions but that would really help me if we go that route!
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