Be aware that most Buyers don't like buying these type properties via wholesale b/c they need to be able to do their own due diligence and be able to negotiate directly with the Seller.

But, I do prescreening before its even gets to the point of a prospective tenant paying the $40 fee (directly to agency.

The only way to know what your traffic is struggling with, is asking them directly.

If you’re looking at buying larger multi-family, I would take your realtor hat off and deal directly with the listing broker with getting your commission. brokers want to “hog” the deal and will likely not favor you as much if your expecting a commission and competing against others.

Send me a direct message and I can send you some more info I have on what I did. 

I haven’t had any luck in finding out who this person is - can anyone help direct me to the right site?

Read the website, listen to the podcasts, get some of the books others recommend.If you want a roadmap and turn-by-turn directions from where you are to "incredible real estate success" you can pay gurus all day long for real estate education.

I am in the process of putting together a direct mail campaign and would like to hear some other opinions on the best lists to send to and where to get those lists from. 

Skiptracing is good as well if you want to contact them directly like I do.  

See if she can point you in the right direction.