Agents build permission-based lead generation engines by combining respectful physical outreach with scalable digital tools. Start with hyperlocal marketing like neighbor invites and door hangers linked to listings or market insights. Follow up with consistent email, social media, and open house communications to nurture relationships. Use clear opt-in offers and encourage engagement on neighbors’ schedules, creating a non-intrusive funnel. This approach grows leads over time, leveraging trust and permission instead of cold contact.