I'm assuming the apartment will need to be wiped down top to bottom to remove the odor. 

Water damage, mold, old systems, leaky roof, rot, odor (humans and pets), old windows, filthy, etc. 

This place had had a WALL of odor when you walked in the door.

Problem is video recordings can't capture odor. 

Within Maryland, I've heard grumblings from family there that the "second wave" of foreclosures is about to hit.

Shellac seals in the odors on wood. 

Ozone generator for a few days after a B.I.N Shellac or oil based primer will kill odors.

had hairs all over ..moldy wet floor and whole unit had disgusting odor!..

It's better than Compton, and I think it is improving, but lots of section 8, lots of late payment renters, lots of people on "disability" and you frequently smell the odor of very strong marijuana in the air.I bought here because It was affordable (for CA), I don't feel unsafe in the area, and I really think the area will improve because it is in a very advantageous location geographically.It isn't hard at all to get renters, but their quality is generally low (credit issues, potential section 8). 

There is no odor or other issue with the house.