Multi-Family Property

Hello Experts,

What defines a multi-family property? I was told by a realtor that for a property to be considered a multi-family property, the building must have an entrance (or entrances) through which all individual occupants can access their respective homes.  Where as a block of homes that are attached to each other cannot qualify to be multi-family properties and have to be considered single family homes.

I am looking to invest in 2-4 unit multi-family properties in Florida and I had asked about a particular type (town houses) that had a garage for each unit in the back and a separate entrance to each unit.  In this case it was a block of four units.

Could it be that this only pertains to the Orlando, FL area?

Thanks

Marcus