I recently moved to NH and am checking out the Multi Fam Market here. I did a search online and ended up finding an agent here. They are all over here. As far as Edwardsville is concerned, I grew up around the area (STL, Fairview, Ofallon, St. Charles, Alton, Salem) and I would be surprised that there are not more turnovers in that area for multis. Being a pretty big college town im sure there are a lot... guess finding them and then finding ones that are up for sale is another issue. I was going to say if your looking outside of e-ville fairview and ofallon would be great places to look but you stated you were trying to stay within 10 miles. I did a quick search and only found 1 (http://www.realtor.com/realestateandhomes-detail/617-619-Garfield-Ave_Edwardsville_IL_62025_M81838-09560?row=1). Sometimes you have to tweak the search keywords in order to find what your looking for. But you may have to branch out if that is an option to some of the surrounding cities.