Welcome to Trulia Voices and thank you for your question. Only listings that have been submitted to Trulia manually can be edited at this time. Other listings need to be updated with the source that provides the listing information to us. We receive your listings from your MLS via USAMLS.net so it is recommended that you contact them to ensure that they have the most up-to-date info in the data feed they send to us. Once they update their data feed, our display should update automatically thereafter to display the new information.
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If it's via a feed, then I'm not sure as I've had trouble with feeds too.
Keller Williams Real Estate