popa: as noted above, dash and dy are correct, that most “lakewood-style” two family homes are excluded from federal and state housing equality law, if owner occupied.
Yonkar, the fine is far less relevant than a potential lawsuit. There have been successful lawsuits/settlements in which sympathetic minorities cited statistics about the differences between neighborhoods and won significant sums of money.
The key is being able to get a jury on your side. With missionaries this would probably be quite hard. Divorcees, not as much. African American, pretty easy.