The original lease from 2010 states there will only be one occupant, but there are 3, one of whom is a registered sex offender (son of the lessee) with some recent offenses for disorderly conduct.

The primary voucher holder does not get his/her own bedroom, and they don’t separate sexes.

I don't see this as an emotional thing or a non-emotional thing (because I know tons of male investors that base their decisions on emotions and not data), but I do see the difference between the sexes as being how they take information in and at what point they are comfortable making the decision. 

If she turned one into a sex dungeon for the cats would it matter?   

Fair Housing States: You have the right to expect that housing will be available to you without discrimination or other limitations bases on your race, color, religion, sex, handicap, familial status, or national origin.

@Paul Sandhu beer is the other form of payment that is mutually accepted around the world...that and sex

@Ben Nelson from what understand inheriting tenants in general seems to cause unwanted problems, sex-offender or no sex-offender.

Nobody is going to jail for a sex offender tenant committing a sex offense in your property. 

Piggybacking off of @Nathan G. and @Patricia Steiner:When I looked into owner-occupant discrimination laws, I saw that I was allowed to discriminate by sex because, as roommates, we shared a bathroom.

One complained of loud sex in the early evening when she comes in from work with her young son.