Final answer:
Tennessee's fair housing law adds marital status to the seven federally protected classes; sexual orientation is not generally protected under federal housing laws.
Step-by-step explanation:
Tennessee's fair housing law includes eight protected classes by adding marital status to the seven federally protected classes. These federally protected classes are race, color, national origin, religion, sex, disability, and familial status as outlined in the Fair Housing Act. Sexual orientation is not a protected class under Federal civil rights law generally, but it is for federal civilian employees and in federal security clearance issues. Moreover, Title VII of the Civil Rights Act prohibits discrimination in employment on the basis of race, gender, national origin, religion, or sexual orientation, but this does not extend to housing protections.