Sorry, that's still not making sense. Since there is an option for a property to be "multi-family", that implies that the building is treated as a single entity for tax purposes. Unless you're supposed to list each individual unit on its own? Then divide improvement costs to the entire building by the number of units, like if you put a new roof on a duplex? Are corporations that own buildings with hundreds of apartments filling out individual forms for each individual apartment or the building as a whole?
