It is a Realtor incentive. I found this on their website:
To participate, bring a buyer and successfully close a transaction for an enrolled
$24K Event listing and you will automatically be eligible to win $24,000. A
drawing will be held during an invitation only event, which will be announced at
a later date, for all eligible participants. All participants must be present to win.

Feel free to contact me at
http://www.ziprealty.com/agent/lpuniwai

I can help you find the right home, no matter which agency is representing a Seller.

Lucy Puniwai

Hello!

A 24K Event is a Coldwell Banker event. CBDFW.com is the site where I found information about the event.
I hope this helps!

Yevette Trussell
Keller Williams Realty
Mountain Brook/ Homewood Office
Birmingham, Alabama