During our last meeting, we came to some preliminary decisions about working together. I believe I have a good understanding of your needs and you have a clear view of my services.
Therefore, I am asking that we sign a simple Letter of Intent so we can move toward a final contract. This letter would state your intent to contract with me and to make payments according to the schedule I described in my proposal to you. Once we sign this Letter of Intent, I will begin to process the final contract.
I will call you at the end of this week to set up an appointment to sign the Letter of Intent. I look forward to working with you.