Building a relationship with just one realtor or using multiple?

[Account Closed]

I have recently started out (one property purchased and counting...) and I plan to focus on a small number of neighborhoods. I used a realtor to purchase my first property and he focuses on the same neighborhoods that I plan to focus on. That being said, I plan to purchase property #2 in a few months time and was wondering what your opinion is: Do you try to build strong relationships with just one (or a small number) realtor or do you work with a large number of realtors? What has worked for you?