Retroactive ADU Permit Approval

P.S If you dont state that this is your "Fixed price with no further negotiations or discussions" in your description as the first line , you can participate , if you want discussions it means you dont know the job SO DONT WASTE YOUR TIME OR MY TIME
WHATEVER YOU BID WILL BE FINAL AMOUNT TO BE PAID SO THINK AND APPLY OR STRICTLY DONT PARTICIPATE

I have a 480-sq-ft structure already standing on my property. It was originally built under an earlier permit, and now I want it officially recognized as an Accessory Dwelling Unit so someone can live in it. The city requires a fresh permit package even though the building is complete. I have already created floor plan.
County requires that Kitchen, bathroom and shower has to be made in this already permitted Garage

Here is where things stand:
• Purpose: convert the existing structure into a legal ADU and secure the final approval.
• Scope: prepare all drawings, forms, and code‐compliance documentation the city will ask for, submit the packet, and follow it through revisions until the permit is issued.
• Plumbing: at this stage I am not adding a toilet or shower, so bathrooms can be left out of the plans.
• Documents on hand: the earlier permits only. I do not yet have current blueprints or inspection reports, so you may need to create or source what the city expects.

I need someone who understands local zoning and building codes, can draft or update plans in AutoCAD/Revit, fill out the application forms, respond to any correction notices, and communicate with the planning department until we have the stamped approval in hand.

Deliverable: a city-accepted permit set resulting in an issued ADU permit for the existing 480-sq-ft building behind the main house it already has electricity with 100 amps