[AnAmericanMother]

Cheapskate developers don't want to pay a licensed surveyor. It's fairly expensive, but necessary.

From time to time they get burned.

[AndyJackson]

actually having a surveyor come out and verify already in place lot markers [burried survey points] is not, on the scale of these things, very expensive. When $millions and your possession of your future home are at stake, a couple of thou is really cheap.