CoStar regurgitates what the brokers tell them.  

That could be it, but more than likely they're just emailing out regurgitated lists hoping to get a sales contract from someone, then present it to the seller, if it's still available and work out an assignment fee on the back end. 

People want to decree something as fact and regurgitate the standard party line when there's no basis in fact whatsoever. 

I think you are getting some great advice in here.I agree with most of what @Rob Belandand @Ray H. have said.Won't regurgitate all the same stuff so will just add a few details and places where I have different thoughts.Yes you can ask for leases with proper notice, or ask for formal TAW agreements to be signed and either of those can include a rent increase if you are inclined to do that.One thing to keep in mind for notice is that it is 1 month or 30 days, whichever is longer.  

But I do feel that people that have not done wholesaling and are not experts at it, shouldn't give advise.I really get that you are trying to help and that is very admirable, but I constantly see people give advice that is simply regurgitated stuff that is just bad advise and people take advise from non expert just because they have heard it mention before and thus assume it is correct.Again, this is not a jab at you, I just feel strongly about this.Instead of asking what they want for the house, ask them what they would list it for if they were an agent, or what they would buy it for if they saw someone else selling the property.This forces them to see things the way they really are and not focus on what they want for the house.

Commit to that channel for a period of time without getting distracted by other channels and bouncing between them.This is one of the WORST thing I hear all the gurus keep regurgitating.

keep in mind most investor on BP of course like to regurgitate this mantra" I am a cash flow investor  Appreciation is gambling "  LOL  not sure who coined that term but it sure is prevalent on this site. the stuff I am funding for others rents are more in the 700 to 900 range.. from what I can see..  

A new law or mandate happens they don't just regurgitate what it is, they have to peal it apart, find out how it impacts anything and everything, how we are to be in compliance with it, what the work arounds are if any, and than they reach out and connect with the powers that be to get clarification.

When I say real I mean 1) they are not just regurgitating the MLS (I'm working with an agent) and 2) actually exist beyond an inactive web presence?

Stop wasting your money on useless and regurgitated information you can find on the Internet for free.