That is their model; it's a constant sales funnel rather than building long-term profitable relationships with a select few students.

I buy property at foreclosure auctions, many where payment in full is made on the spot.

And, yeah, if it gets damaged, just sand the spots and repaint again.

If a commercial tenant complains that another tenant is parking in their spot, parking in front of an emergency exit, or is causing a noise disturbance, what is the best course of action/inaction for a landlord?

Renters are extremely good at spotting a weasel and they will in short order treat you and your property accordingly.

Someone always painted a white X on the spot in the street, which the city tried to remove, but it always got repainted.

Today milled lumber is graded so that the engineer can, with reasonable accuracy, calculate the maximum loads that it can handle and select the most economical member.

I am currently learning the Urbana market (where I own my primary residence) and a few select neighborhoods in Hagerstown and Frederick. 

Stay active and fish for deals, sharpen you knowledge and skills and be very selective.

Does your tenant selection criteria exclude felons?