Duplex House Design Within Budget

I'm seeking a skilled and creative house planner who can draft a duplex house design. This is within a budget constraint of less than $100,000. My house should comprise a garage, a home office, and a basement. The ideal candidate for this project is one with proven experience in architectural design and construction within a strict budget. It would be a bonus if you've previously worked on duplex houses. I'm looking forward to seeing innovative and cost-effective designs.