NorthstarMLS rules only require that a bedroom can be counted as such, if the county or city recognizes a space as a legal bedroom.
Under Minnesota state law, the minimum requirements for a legal, conforming bedroom include a room having at least 70 square feet and one egress window or door directly exiting the structure. City and/or county codes may have additional requirements, such as a closet or minimum power outlet requirements as well.
However, NorthstarMLS does not have a defined set of requirements or regulations of our own. If you are uncertain whether a bedroom is legally conforming, agents should contact the city or county assessor to determine the legality of the space being called a bedroom.