getting away from mortgage insurance

[Jason Schmidt]

in some instances, it seems as though the mortgage insurance can run quite high. I know that generally, you need to have 20% into the house to forego the mortgage insurance. What if you buy a 100k home with 0 down but at a discount to where the home is say, worth 150k? Does that home still need to have 20% of your cash in it in order to get away from mortage insurance?