If you'd be interested in receiving "legal" compensation from the mortgage side of the transaction, take a look at this.
I have been in the mortgage business for ten years, and was so blown away by this opportunity, I closed my branch! The thing that makes this work is the fact that realtors need not become mortgage professionals. Just input your client’s information into a web site that is provided to you, and the processing center handles it from there. Commissions can be as high as 100% to the realtor!
Pretty Cool Stuff.