Fire Sprinkler Design for Home & ADU

I'm seeking a professional to design a fire sprinkler system for my main house and ADU. The construction is already underway, and I need help with system design and creating the necessary drawings for permit approval. Key Requirements: - Design a comprehensive fire sprinkler system for both structures - Provide detailed drawings for permit approval Ideal Skills and Experience: - Expertise in fire sprinkler system design - Familiarity with permit approval processes - Experience with residential construction projects Please share your relevant experience and approach.