Structural Engineer for Stair Compliance

I am seeking a licensed structural engineer to review and provide an approval stamp along with a cited letter for a house plan. The main concern involves a staircase with a width of 30 inches, which does not meet the IRC minimum requirement of 36 inches. The engineer should assess the design, ensure it complies with safety standards, and provide recommendations or justifications. Detailed plans of the single-family home are available for review. Ideal candidates have experience with building code compliance and structural design.