Probably the most important source of recruits is your present staff. There are many advantages to getting your present agents involved in recruiting: 

Their loyalty is ensured. If they are helping you recruit there is no doubt that they are loyal to the organization. Why help you recruit someone and then leave?

They will become involved in making the organization better. When they bring in a friend, relative, or other close contact, they become emotionally committed to the success of that person and the organization.

They will become instant mentors. They will help those they recruit everyday because of this vested interest.

They know other agents. Real estate agents are working with other agents all the time. 

Your present agents are excellent recruiters because only they can talk first-hand as to the office, its leadership and how it has helped them make more money. Anyone who speaks to you knows that you have a vested interest in making the company look good, but an agent does not have this vested interest. They are close to being a neutral party—with inside information. 

The question is what incentives do you have in place to make sure your agents are actively recruiting for you? Do you supply them recruitment materials regularly? Do you integrate the topic into your weekly sales meetings?  It is only when you define this goal as a priority that you will take the steps necessary to elevate the importance of recruitment activities in the eyes of the agents.