Looking for a duplex in wilmington/delco area

[Rocco Grossi]

Hey everyone, I am looking for a duplex in my area. Are there any strategies that anyone suggests? I have a real estate agent (2 actually) that are looking for me and I also check sites like realtor.com and zillow regularly for listings. I am looking in the northern Wilmington, DE and Delaware County, PA area. A lot of properties that I am seeing are in bad areas, my girlfriend and I will be occupying one of the units so obviously she doesn't want to live in any bad areas and neither do I. If I do happen to see a property I would like to see, do I contact my agent or do I call the listing agent of the property? That may be a dumb question, I am new to bp and investing; I am very motivated to get started!