Sales Letter Writer

We have three very important sales emails that we need to send. I am looking for a professional sales / marketing writer to assist in the composing and issuing of these emails we a view to securing very important appointments, The budget is very tight for us at the moment but for the right person I am willing to offer an incentive should any deal close as a result of the initial contact. We have the products and have completed the research we just need to complete the process now and go in for the appointment. We only have one shot at this so it needs to be perfect!!!