Agree that the raw data is easily available. However, I couldn't find any great free interactive maps/tools combining this data at a national level. In additio

Agree that the raw data is easily available. However, I couldn't find any great free interactive maps/tools combining this data at a national level. In addition, going from price and rent to cap rate is already relatively complicated, as expenses (such as property management, homeowners' insurance, repairs, ...) have a sub-linear dependence on price or rent. This sub-linear dependence is included in the map. Using a fixed-percent model for these expenses will artificially inflate C-class cap rates, while artificially deflating A-class cap rates. Planned additions: 1. Filters - To answer more complex questions 2. Landlord/Tenant-Friendly States (also fiscal solvency of states ... to estimate risk of property taxes rising rapidly) [edit: formatting]