To scale lead sources effectively, real estate agents should focus on dependable referral networks and use high-ROI marketing channels rather than expensive paid portals alone. For example, nurturing existing contacts with consistent CRM follow-up daily transforms prospects into clients. Leveraging tools like social media with optimized property visuals boosts engagement cost-effectively. Tracking lead source conversion helps allocate budget smartly. Scaling relies on systems that build long-term relationships rather than chasing costly single leads.