Debates about rent regulation are not known for their nuance. The world tends to divide into fierce opponents and strong supporters. Moreover, debates rarely engage with the details of local ordinances, even though those details may significantly affect outcomes for tenants, landlords, and broader housing markets. This paper catalogs the multiplicity of choices that local policymakers must make in enacting and implementing rent regulation ordinances and consider the implications those choices may have for tenant protections and broader market outcomes. This paper then highlights the wide variety of regimes that jurisdictions with rent regulation have adopted in practice. It ends with a call for new empirical research to study the effects of different regulatory features.