Stone Retaining Wall Construction

Hello, I’m looking for a quote to prepare engineered drawings for an existing retaining wall and a shed at my home in Fort Salonga. For the retaining wall, The Town of Smithtown requires the wall to be legalized because the section near the curb is over four feet high. For the shed which has already been built we need drawings to submit and any other work needed to bring it up to code. Please let me know your estimated cost and availability. I can provide the inspection notice, survey, measurements, and photos.