Nostradamus: You were wise to walk the neighborhood and talk to residents.
This is the single most important and most overlooked way for buyers to learn quickly about the huge decision they are considering. You will invariably pick up usefull information no broker will tell you–about rents, physical defects, demographics (ahem), crime incidents, trends of all sorts. Plus, you may be pleasantly surprised (or not) to meet the next door neighbor in advance.