Let some other landlord take chances on her.I can tell you from first-hand experience (not me) that women who end up in abusive relationships, do so regularly.  

Many women do.

On top of that, it was often incredibly hard for single women, or couples in a relationship that was outside of wedlock, to obtain mortgage financing.

For Ex--if you're entering your home -- and you've got a family or say the 20 year old  son and his friends hanging out and drinking beers on the porch ---this will be uncomfortable for the single mother on the 2nd floor and for the 2 professional women on the third. 

Women want equality, which means she is obligated to pay for her living expenses.

The tenant was a 70 year old women who had been in the apartment since 1990. 

Women like that kind of thing....and it may sway a tenant your direction.

My instant worry becomes how openly it was out in the open; and the fact that there are 2 other women on the property who are single.

Embracing some of the style elements in neutral base colors looks like the right plan. 

Its a fresh, exciting world where women have leveled the playing field.