realtor ?

[Joe Guz]

ok...first off Im a small investor(6 properties) and every properrty I have is from the same realtor. I find all the houses myself, I basically do everything--I feel obligated to stay w/this guy for some reason..Anyway, my question is if I ask him to ;ower his %, how does this affect me with a purchase? I realize obviously, during a sale I would get money back---but would I be saving anything buying properties?
Thanks
B.I.G. REI