newbie in need of Research help

[Thomas Loughran]

I am new to real estate investing and I want to start with wholesaling in my area and I am doing my research. But what more should a Investor know in his research?
I have started building my buyers list as well.
1. I have talked to five Realtor in my area and only got one of them to send me some info. Do you guys work with only one Realtor?
2. if you do not use a Realtor how do you get your research info.
3. This is what I asked for and got but am I missing anything.
I got a list of single family homes in each area for the
High Price.
Low price.
Average days on market.
Average sold price.
Map of area,that a Realtor uses
I even asked for all the cash buyers for the last three months for each area,but he told me he does not know how to pull that info.
Thanks for your feed back.
Thomas