A three-year evidence review of New York City’s Local Law 18 and its impact on short-term rentals, housing, hotels, local businesses, and homeowners. I researched and synthesized government data, peer-reviewed studies, academic research, market data, and industry sources, weighing each source by evidentiary strength. The final report separates established findings from emerging evidence and unsupported causal claims, translating complex research into clear, decision-ready insights.