A majority of places make you go through their own site and applications. Alot of contact ends up through email or "requesting to apply", which can get messy and confusing to keep track of which house is what email. It would be great if using Zillow was more enforced for the people listing the property. Maybe have it required to accept the Zillow application if they are listing here. Maybe have communication start inside of Zillow until information is exchanged here to move outside of it.