Do I have to contact my realtor?

[Hendrix P.]

I am in the process of purchasing my first investment property about 2hrs from my home. This past weekend I meet with a realtor in the area I'm interested and looked at a few properties. One of the properties I'm interested and have contact her for some more information but she hasn't gotten back to me yet. In the mean time I do my own search and came up with another property in the area that might be good. Do I have to contact the realtor I am/was working with or can I contact the broker for this property directly?