Basement Bowing /foundation shifting. Should we cancel contract?

[Juel McGhee]

The home was built in 2007.  The basement is uneven.  We were told to call a structural engineer.  My client is buying the home.  On side is at 26, one at 23, one at 24.5, and one at 25. There are a few cracks but the basement seems very dry, no evidence of water.  We were only alarmed because the inspector said we should call the foundation company.  The foundation company said call a structural engineer. He said there are no holes in the concrete masonry blocks.  Client is concerned if she should cancel or move forward with structural engineer which can cost up to $600 just to assess.