Graphic Design tidy up / enhancement of an investment pitch

Information for the business: Property investment pitch Industry: Business Kind of design: Full presentation Target audience: Wealthy individuals Number of slides needed: 13-14 Data and special elements to include: Clean professional presentation required - nothing that could appear 'toy town'. Solid professional contemporary approach needed. Ideas for the visual style: Clean, easy to read, contemporary Things to avoid: Too much 'glitziness' Extra notes: We have prepared the presentation in powerpoint and are looking for a graphic designer to make it look more professional / contemporary without changing any of the content / text as this has already been proof and copy-read. The pitch is attached and we would like an indication / examples of what can be done in say an hour and a price? Other proposals welcome and we can confirm colours/style or perhaps provide examples we like if needed. Thank you