@Hernan Guelman, the only reason I felt the need to suggest NOT raising your deposit percentage is that @Mike Makkar wrote: "the only way to make this property cash flow positive is increase your down payment to 30 to 35%" - which could easily have been (incorrectly?) 

Little solutions and common sense is not going to win the day.  

You may win in court, but it may cost you 30k to do so.

Sometimes I will ask if they can help with financing, but I am not too pushy.Getting the right deal that makes money is like courting a lady, take it slow and easily. 

In Florida when you win the auction you have 24 hours to pay in full.  

Depending on a state's charging order laws, they could still win a lawsuit and essentially never see payment from the asset.  

I can see how someone can easily blow through a $10k campaign without getting any deals.  

As mentioned above, direct mail works decent as well.In addition, it sounds like you are making several offers already and not winning the bid.  

It's all about the guarantor on the lease, experience in that chosen industry, a track record of success, liquidity and net worth of the guarantor, and how easily attachable the assets are if something goes wrong.For instance I would never front money for tenant improvements on a business that is not a proven performer.

Win-win-win!