There was no property listed in your question. If you're looking at a rental, you should scroll down to the bottom of the listing and try contacting that landlord or property management company directly. Beware that many scams exist here on Trulia (and other sites). If it's too good to be true, it usually is.
If they respond to you saying they'll mail you the keys if you just wire them the $$...DON'T DO IT.
I think it's best to just deal with property management companies directly.