mk0325,
There are a number of other threads discussing Realtors (use the search feature to find some), but in general I think you need to do something to stand out above the crowd. Realtors, especially producers, get bombarded by loan officers wanting their business.
Do something different... send them business first or create a blog and post pictures and info about their listings (ask member
Lenderama about this - one of his great ideas) or if you're daring and confident - ask for any impossible deals they have that nobody else could get done. If you figure out a way to get an impossible deal done, the agent will likely send you more tough stuff and there's a good chance they'll tell other agents in the office about what you were able to do.
There are many more ideas but that's a start. What have you tried so far?