As far as how I built my buyers list I would use social network sites, craigslist, meetups, and MLS research to name a few.My role with my current company is as a business development executive aka loan originator. 

I build social housing in Southern Baja and am looking for investors.

Either way, this is a social business, if you can list 100 people you know that you can approach about real estate (not that they would buy or sell anything, just know you can introduce yourself to them) then you would have a very good start as an agent.

You'll be amazed at how much can be found in public records.And don't forget to search social media!

Unless you want the RE commission on your neck, along  with a host of other agencies, I suggest you not use bait and switch tactics or false ads as Daniel suggested.Start thinking of RE as being a social business, it takes people relationships.

With an LLC you will also be adding self-employment tax paid towards medicare and social security which will be paid on all net profit of the corporation.

That being said I have a number of good low income tenants, the best are those on fixed income (social security or disability). 

In this case I pay a flat advertising fee per month which includes them putting out a sign, posting ads in local stores and bulletin boards, posting on their own website and social media and doing the local Craigslist (If I want anything beyond free advertising I need to pay for it).  

Most people want to be in a matching neighborhood and the same social bracket, income level etc.

@Joshua Dorkin @Brandon Turner Thanks Josh for the Welcome - I am huge into Information Technology (over 20+ years) and I have to say I am 100% impressed with your site and your ability to stay on top with welcoming new members like me (especially having young children around - I have 3 of them and it is hard to even type this will all the craziness going around me).As a social experiment,  I am interested to see how long it takes Brandon to notice this post as well :- )  I wish you and your family a successful 2015 year and if you ever need anything here in the far Northwest Chicago suburbs, just let me know.