I inherited a tenant that was a registered sex offender by force/authority for children. 

Multi state criminal and sex offender.

Under the federal Fair Housing Act, landlords who live in a property with four or fewer rental units (this would include your situation) are exempt from all but one aspect of the federal law: They may not advertise in a way that indicates a preference for (or against) members of a protected class (race, color, religion, national origin, sex, familial status and disability).

To the extreme that one property manager told me stories about a 12 units studio building under his management with 8 tenants registered sex offenders.   

The protected classes include race, color, national origin,religion, sex, familial status, and disability.

I recently came across a house that is currently owned by a sex offender.

There's an old saying called the "powdered butt" syndrome: once someone has powdered your butt (as a baby) they don't want your opinion on money or sex.  

In addition to that, we like to check with the police, fire, insurance, sex offender status, and anything that might affect the operations of the park.

I’m going to go out on a limb and say roommate situations are easier to allow for only a specific sex to live there, but again speak to a lawyer about it.  

The scammer does not want to reveal phone number, sex or accent. 3) "How do you intend to receive funds"  Irrelevant a this time. is intended to give you the illusion of getting the money.  4) Bad English grammar.