Any tips? Or is there a great book on this subject?
closed as not constructive by Zuly Gonzalez♦ Sep 25 '12 at 14:46
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Don't know of any great books I'm afraid, but I would suggest that apart from the usual sales-related interpersonal skills, being a "successful middleman" boils down to adding genuine value to one or both sides of the market you serve. Typically this is along the lines of a specialist skill/understanding, but equally it may just be in terms of breadth of knowledge about the market - where to find buyers/sellers, what the needs of each are and how to bridge any gap between them, etc.