realtors take a good investment first?

[Dal Bouey]

ok so im new here and about to buy my first rental prop. i was told find a realtor who can bring me good investment props and who also owns some of his own. but my question is,,,,why wouldnt my realtor buy the great deal for him self while in his search comes across the good ones? i mean if i were a realtor searching for great investment props and came across a great one there would b no harm in taking it for myself thats not unethical to buy some more of my own. so how does that work?
thanks for the advice!!