I am an Residential remodeller looking to contract out Chief Architect work. The process is that I would provide measurements and photos (videos if needed) for typical homes 1500-3000 sf. 1st file will will be existing. After I recieve the existing plans, I will mark up and return with propsed design. i will the require the altered structure drawings with 3 roofs siding etc. At this stage we wont be too far into interiors and exterior will start out basic, final presentation after the design is verified with potential client we will add rendering details.