Address the specifications first. Clearly, they know what they want.
But how to make sure your letter of intent is non-binding? What's the deadline—do you have a good couple weeks to respond, or is the deadline three days away?
The result is that none of the proposals get reviewed properly, often getting skimmed or evaluated based on the estimate pricing at the end of the proposal. Are there any that you would like to see utilized in the new project?
Applicants selected to submit a full proposal will be notified by DATE. Avoid asking clarifying questions, which may make your intent ambiguous. Your company may even have a list of acceptable vendors. A well-written letter of intent, instead, will please the requesting organization by encouraging them to do whatever it takes to come to a definitive agreement, which is the conditio sine quae non for the intended deal to take place.
Costs aside, your proposal should detail: What you're hoping to accomplish A step-by-step breakdown of how you intend to meet the client's goals A timeline, with milestones Key deliverables Try to be as detailed as possible, but don't ramble. Are you going to require that your partner meets certain accessibility guidelines?