I need a mechanical engineer for the installation of a commercial kitchen hood/exhaust system

We are Brittany's Butters and Gourmet Bakery - opening in November in Winnetka Illinois. We are having a hood system with exhaust installed in our bakery kitchen and need a mechanical engineer to review the permit requirements for the installation. We have a hood already fabricated and an installation team in place to install the hood. However, we have been given review notes from the initial permit application from the village fire department that need to be addressed and we do not have a competent engineer to evaluate what is needed for re-submittal for the hood permit.