I would NOT want to be a landlord in any state these days.
As far as I know, Iowa has an old law that if you live in a duplex or triplex you own, you can discriminate as much as you want to. This used to be published in the tenant/landlord handbook in the 70’s.
Seldom do they revoke a law, they just add other laws on top.
Check your state for this old law, it makes common sense.
they write the new laws to supercede any old laws. One poster on a popular landlord forum was SHOCKED to see this kind of private property busting law being voted into in OMAHA.