Shifting House - Structural Problems?

[Nicholas Richardson]

I looked at a house earlier today and am not really sure how to estimate this. The owner had an inspector out and he told her the home has shifted. You could see a large crack in the living room. The crack it the living room looks like it could just be covered up. On the outside wall you can see where the brick no longer lines up and they tried filling the area. I have posted some pictures of the outside below. Is this a huge amount of money to fix? Is this something I should just stay away from?