Is GHL required to start an agency?
No, GHL isn't necessary. It's just a tool that gives you about 80% of a good CRM out of the box, and it's fairly well pre-configured. However, you can often get a better setup by adding your own process knowledge to other platforms like ClickUp, Monday, ASA, or Trello. The pre-configuration of GHL can lock you into a specific workflow, so don't feel compelled to use it.