Screen Porch Addition Engineering Design

I'm in need of immediate help from professional engineers to create engineered drawings of a screen porch. This porch will serve as an additional room. I need my drawings inspected for code issues and signed off on, or changes made if needed for building inspector to approve. I would send over my drawings and wait to hear what is needed in order to pass inspection, because local inspector cant tell me and wants an engineer to sign off on it. 320-492-6106