I am in a unique (maybe not so unique) position of seving as the middle man between a whole seller and investors. I am currently working with a whole seller who also does flips but is currently receiving a list of properties from an asset manager, I am aiding him in finding buyers for his properties. Now, once I find a buyer and the offer is made how do I ensure that I get paid an agreed upon finders fee without getting cut out completely? Is there a specific addendum or clause I can insert into the purchase agreement?