Hi Jody,
Yes, you have the right idea.
Generally when I do a consultation I make sure to get what they want, when they want it and how often. I also determine if it is per project or retainer.
Your consultations should be at minimum 30 minutes. This allows you to make the above determinations, get the scope of work and if it will be retainer or per project.
Then this information is put into the contract and sent to the client as a follow-up email.
I hope that helps

Andrea