How should I do this finders fee for a San Diego apt complex?

[Andre Mccollough]

Hi

I am new to this forum.

Here is situation:

I am a residential broker who got wind  from a  friend of a unlisted owner selling a pair of apt buildings in downtown SD little Italy area.  

I couldn't handle this type of deal as I wouldn't feel comfortable.  I have a commercial broker that I can refer it to that has buyers for this.  The owner wont list the property. 

What is the best way to :

1-structure it so I get paid well

2-structure so the commercial broker wont go behind my back after I give him address/owners info?

3- make it a win win for everyone.

the guy wants 6 mill for the properties and has potential for hi rise or mid rise redevelopment.

thank you