Structural engineer home rafter ties

I have a medium-sized home or building, approximately 1,000 to 2,000 square feet, that needs structural engineering for the rafter ties. I am not sure if they need to be added or replaced, as I am not aware of any current issues or problems. I do not have any specific preferences or requirements for the new rafter ties, but am willing to work with the engineer to make sure that the design and installation are up to code and provides specific structural integrity. I am looking for an experienced structural engineer who can provide quotes and estimates after inspecting and assessing the site. The end goal is to ensure that the rafter ties are secure and compliant with all necessary regulations.