Being close to that would be undesirable to me but it's definitely not what I would consider to be a "bad area".You should be careful with tax liens as there is a rather large amount of federal land in the county and it's not uncommon to have tracts of land that have no legal access. 

Perhaps popcorn texture is common/popular in your area, but in many areas, it's actually considered out-of-date and undesirable, and you may be adding some value by getting rid of it and repainting the ceiling.Just a thought...like I said, I don't know your area, so I could be way off base...

I'll try and snag some pictures of what I deem as an "undesirable" location.

A better argument for your sake would be: student loans are bad debt if an undesirable major was chosen.

Metropolitan is a very undesirable street.  

If there is a worse example of rewarding an undesired behavior, I am challenged to think of it.

Drug users also bring unnecessary drama to a property and usually have more undesirable behavior that goes along with their lifestyle.The one with the eviction would meet our minimum criteria to rent if they had only one eviction and would make full restitution to the previous landlord prior to renting from us. 

For example, North Philly by Temple University is a wonderful place to get into; however, the boarding neighborhood can be a little undesirable and breaking into the Temple market is difficult due to higher cost.

If you can only attract undesirable tenants, you might want to pass as that is a sign the area might be more trouble than it's worth.

But the expenses and lack of control make it undesirable.