Join LinkedIn (free and no need to upgrade)Join some LinkedIn groupsthat relate to your business: Real estate Investors, Private Money, Bank Direct, etc.Ask each group for daily or weekly emails of their latest posts.When emails come in look at the posts, but more importantly look at those who responded to the posts.

I know some groups on linkedIN that work with Large Apt complexes that are valued over 2M that will help with loans. 

Joe, I marketed to my buyers list via Constant Contact, posted it on Craigslist & also posted it on several LinkedIn Groups.  

So Im on Facebook, Linkedin and Twitter.Facebook I have heard you can send messages to people you dont know as long as you stay under like 20 messages in a row.

I am looking forward to grow and am thoroughly excited on this new Career Path that I am taking.Below is a link to my LinkedIn Profile..

For free you could start a linkedin page and join a few of there real estate groups.

If not, then start looking on Facebook/LinkedIn, etc for their info.

Then LinkedIn the positions of everyone that sign the docs associated with the DocsYou sometimes will see Joe Blow signing as an Officer and he's not,,John Blow as Banks atty  hes  not ever a paralegal .

Check out quality of posts, websites, LinkedIn and any other background information.Since I'm new to the REI arena, I've spent considerable time learning, observing, following and reading select member posts on BP that I've come to trust, just to understand the nature of this diverse business. 

Use it just like FB and LinkedIn.