Real Estate Investment Leads Where Can I Find LEADS Of People Who Have Recently Attended A Real Estate Seminar? Please Help?

Where can I find LEADS of people who have recently attended a Real Estate Seminar? Please Help? - real estate investment leads

My company specializes in investments in education and have a great team. I was responsible for finding leads from people who recently attended a seminar on property investment. I have with the demand for 2 weeks and I find nothing. All companies that are sold are only general. What I need is very specific, and if you know a company that my needs that you can help me and my work have seen tremendous growth. Thank you for your help.