I always thought the difference between an apartment and a condo was just in ownership? I thought you generally rented an apartment, but owned a condo, though I'd say that I'm currently renting a condo because an individual owns it, moved out, and is renting it for extra income. Pretty sure the name doesn't necessarily mean anything quality-wise.
eta: and I lived in a condo last year and it was definitely under the description of "apartment" by your definition. Walls were soooo thin, and I swear the people above me were smashing like 5 kids into their 1 bedroom, and they all were running around constantly.
No idea on realtors, though I feel like someone mentioned calling one in this thread or maybe the other UIUC one. I just went through that list I linked to as well as padmapper and did the legwork myself. Annoying, but turned out well.
You're right, but when I think of condos, I think of... trying to think of how to describe this. IF you watch the office, Michael Scott moved into a condo. So its like right out on the street. With an apartment complex, you usually go back into a large community and you're surrounded by people. Way more neighbors, way more packed in.
There might be no difference between a condo and an apartment besides ownership, so I guess what I'm trying to say is a smaller, less packed in place. Condos I always thought were just small houses that were basically combined together side by side.