Norfolk Ordinance Information Regarding Roomers within Single-family Communities

Are “Roomers” allowed in communities designated and approved as “single-family”? The definitions of “family” and “dwelling unit occupancy” in the attached excerpts from Norfolk Ordinances address this question. Basically, the answer is “yes” with restrictions, i.e., a total of two or less roomers/boarders can be in a single-family detached dwelling occupied by a family related by blood, marriage, adoption, or legal guardianship.
Norfolk Zoning Ordinance