By the way, it's also worth mentioning that companies like Zip Realty aren't even allowed to operate in some states (NH is one of them), because the "rebate" they used to offer (I believe they finally did away with this program in all states) is a violation of federal law. 

As I have now changed my approach for my DMC, I now target specific zip codes in the areas that I know well.

Hi, welcome to BP :) I invest in Kansas City in 64134 zip code among others with a turnkey guy I found here on BP.

Any advice on zip codes to stay away from would be helpful too.

I would definitely talk with folks from your local REI club, or use the zip code locator service BP has to find other BP members in your area. 

But flipping over the coin, Grasshopper, I've sold SFR rentals in the 30310 zip code, Oakland City area, to out-of-state investors, and there it was a plus, offering a safe, secure, ready-to-rent property is truly turnkey.  

Check for connections on water lines and drain lines under all sinks (and change out kitchen drains if starting to wear out), check for faucet drips; run showers to check for leaks; "rod" out drain lines with a "Zip It" (amazing what you might pull out). 

Think about you last 5 deals...what zip codes have they been in and what is was your criteria?

In mid 2011 there were typically 70 to 80 homes that met the above criteria in our target zip code.

I have a few lots in a highly sought after zip that I can pull the trigger on.