Hudson Warren sold 111 homes last year worth 28 million. Hudson talks about how he built an agent-to-agent referral practice that brings in referrals from all over the country (and even internationally) and accounted for 50% of his business last year. Also, how he earned an extra 35k last year in outgoing referrals. He also talks about the power of giveaways to get referrals from your sphere, updated contact information, and even online reviews. And more.