I'm not sure what you're asking. Is this your personal home?
Homes could be listed that had shown a notice of default...that is what Realist often does. That does not mean it's actually on the market but is used as a way to draw buyers to use their services. That may not seem ethical especially if it's your home they're posting! They work off of public records.
If you are in trouble with your home, you need to contact your lender. Prepare all of your information on your current financial situation and speak with the loss mitigation department (not customer service). They will in most cases, try to work out a loan modification to resolve the situation if at all possible. If not, then you might need to short sale the home. In either case, while not pleasant, it is better than the alternative of foreclosure.
If you need more detailed assistance please don't hesitate to contact me. I have the forms that you would need to collect information on.
As I was guessing as to your question...I hope that helps. If not, write back.