There are several ways to disable MDM on Mac OS. If you don't know what they are, you can do a quick search on Google.
Anyway this is what needed to be done: Edit hosts file:
sudo nano /private/etc/hosts
(You might be asked for your password)
Then append these lines:
0.0.0.0 iprofiles.apple.com
0.0.0.0 mdmenrollment.apple.com
0.0.0.0 deviceenrollment.apple.com
0.0.0.0 gdmf.apple.com
And DO NOT append this line:
0.0.0.0 albert.apple.com