You will need a Federal tax ID for setting up a Limited Liability Company (LLC
There is no charge for the application if you go directly through the IRS.
IRS Website: Setup Federal Tax ID (EIN)
Choose a Registered Agent
Typically, one of the partners of the LLC will act as the agent
Choose yourself as the Registered Agent. This can be changed in the future as your organization grows.
A registered agent is a person who agrees to receive lawsuits, subpoenas and other official documents on behalf of the LLC and to pass them along to the appropriate person at the LLC.
member-managed LLC
You will most likely want a "member-managed LLC" setup.
If an LLC has only one member, this will automatically be considered a member-managed LLC
manager-managed LLC
This is a less common structure than the member-managed LLC, it can be useful when some members only want to be passive investors.
Next: Operating Agreement