Finding an investor friendly realtor

[Gloria Dulan-Wilson]

I'm new to investing, but not new to real estate; I'm well aware that the agent really is there for the seller, not the buyer - and as a newbie investor I seem to be having a difficult time finding a realtor who is investor "friendly" - who won't leak your info or strategy to the seller and therefore blow the deal (which just happened); or who won't try to stick you with commissions they did not earn.  A realtor tried to get me to sign a commission agreement guaranteeing he would receive a minimum of $3000 per transaction, whether he sold the property, or I sold it; or whether it was sold by other means - i.e, even if the commission turned out to be less than $3000.   He wanted me to make up the difference!  Are there any investment friendly realtors in the Philadelphia, PA area?  I started reading the Handbook for Realtors - I wonder what it would take to get them to read it? Hmmm... Any advice you can give would be greatly appreciated.