Another consideration: your problem might not be your agent. Is the land in a good location? Is it priced appropriately? I sell lots and land, though not in your area (see my current listing in Palo Alto), and I turn down several listings each year that are either 1) just not usable land (such as a remote hillside that errodes every time it rains), 2) located in a neighborhood overcome by urban blight, or 3) not worth half the price the seller wants for it. I hope none of these apply to your situation, but regardless, you need to consider what you can do to help your agent help you.