business valuation

I am looking to have a business valuation done for a startup that I am looking to purchase. I have all the necessary financial information and documents necessary to get an accurate valuation of the business. The purpose of the valuation is to ensure I am making a sound investment in the business, as well as to provide a realistic market value for the purchase price. I am looking for an experienced and knowledgeable freelancer who can provide this service and deliver excellent results. Anyone can speak Mandarin would be perfect. I'm locate at Chatswood in Sydney. The business premise is at Tuncurry NSW.