How much earnest money to put down on a REO/foreclosure?

[Duane Alexander]

I put in a offer on a foreclosure here in GA and the LA responded after 3 days saying that they wanted highest and best. My first offer was 5k above asking but I only offered 1k of earnest money. I didn't realize that people typically put in a higher EMD. I was thinking about increasing my offer a bit and putting in a 5k deposit. Will that be enough or should I go higher. The deal is a no diligence deal so I'm a little hesitant about dropping too much on my earnest deposit. Any advice?