Nattakorn:
I do not think that the issue you mentioned is necessarily a problem.
When I envision our end users sitting down and logging in to our site, I do not think they are necessarily looking at our site specifically trying to find the address to an apartment they may want to rent.
I think the Craig's list feed would be more to provide informational guidance to the end user. This information would tell them if there are many places to live around the school, what the cost would be to live in the area, and even provide them with the contact information if they saw something they wished to look into.
That being said, I do not think they need to know where this place is at on the map (at least through our site) because that is not the type of information we are trying to provide our end users with.