Develop a Marketing Strategy

I own a small tutoring business in New York City. Sales have been sluggish, and I would like someone to help identify ways to bring in more customers. You would propose specific marketing channels and describe the potential opportunities (as well as approximate costs) for each. When responding, please describe your qualifications, especially any similar work that you've done, the results (if known), and references if available. IMPORTANT: I am only looking for freelancers located in the New York metropolitan area. I am not interested in working virtually, by telephone, etc. at this time. Thank you.