Check a deck in Oak Forest, IL

I need cost for an expert to come and check a small deck (less than 200 sq ft) in Oak Forest, IL. The main objective is to assess its structural integrity, and the work must be done as soon as possible. The deck was just built and should be inspected thoroughly to ensure optimal safety for users. House is being sold and new buyer wants written proof deck is secure. Experience and expertise in this field is essential. Freelancers with the adequate credentials will be given priority.