A good realtor should be willing to give you a non biased BPO for a small fee.

I am a bit biased in all of this because I work at a college where students pay a lot of money for their education but too often don't finish the program after paying up to $30k!

I'd also vote for southwest Portland but I'm biased.  

If she's a good candidate based on your other tenant-screening criteria, I would rent to her for the sheer possibility of less drama (though our houses are generally drama-filled based on our clientele, so I may be biased in this case).  

You can also check out the BiggerPockets book on estimating rehab costs...I wrote it, so I'm probably biased, but I think you'll find it to be tremendously helpful.

I'm not sure that this would scare me away if I was a college male, but I'm not sure if I am being bias because I like the property.

Keeping slaves in the south after emancipation, discriminating by race and gender, lynchings....how about genital mutilation in Africa or honor killings in the middle east and child labor.

However making modifications can result in higher rent and bonuses from section 8 for making your property wheelchair accessible also wheelchair-bound tenants tend to be quiet, pay their rent on time, and rarely complain about frivolous things but of course, I am biased.

I used to work EMS over there, and I got a biased sense of the town.

But I'm biased, because although I'm slightly allergic to cats, the worst allergic reaction I've ever had was to a rabbit.