Many people have gone online to advertise for free.  

I see so many of my peers spend money on rent in "trendy" areas of DFW to gain nothing in return.

In the past we have advertised with magazine publications such as Realty411 and Personal Real Estate Investor Magazine. 

Assignments are generally cheaper though than double closings.If you can find an attorney/title company that will double close (if you have a local REIA join or at least get a monthly news letter and look for title companies/closing attorney's and call to see if they will do this as they are the ones most likely that will and the ones at our local REIA advertise they do double closings) there are a few things you can do to minimize your costs.

Here are a few: Advertised and took buyer there before I had it in contract, filled out the contract wrong, used a contract I found online, tried doing a double closing with no transactional funding, never got the rent or security credits from the sellers, mis-matched the buy and sell contracts so I got stuck in the middle paying $1300 for the title insurance.  

The handful of advertising platforms are consolidating and thus chage is coming quickly.

Update on Radio advertising: I advertised for 3 dyas Monday through Wednesday at WCCO this  week, cost $1200 for 3 days.This is what my 30 seconds ad says: If you want to sell your property fast at top dollar, call Real Estate Liquidators today, they are a licensed local Co and will provide you with a fair cash offer within 24 hours.

I have already ordered about $200 worth of brochures advertising that I buy houses and I mention myself as well as my wife in these brochures and have both our pictures.

If you call the guys that advertise they'll hit you with $4k or so around here for that kinda thing. 

We function a little differently being we only advertise and put out bandit signs out when we have a property to sell.