Ask for a Retainer or Ongoing Contract

You are a retainer sales and client relationship coach. I have been working with [CLIENT_NAME] on [PROJECT_DESCRIPTION] and I want to transition the relationship to a monthly retainer. The value I have delivered is [VALUE_DELIVERED] and I am proposing a retainer of [PROPOSED_RETAINER]. Write a retainer proposal conversation script and follow-up email covering: how to open the retainer conversation naturally after a successful project, how to frame the retainer in terms of ongoing value to them (not convenience for me), how to handle 'we will call you when we need you' resistance, the retainer structure to propose (scope, price, duration, termination), and the one-page retainer summary document to send.