House with various problems

[Xu Som]

Hello,

I have a friend who bought his house earlier this year.  Over the course the of this year, he had plumbing issues that flooded the kitchen, garage foundation issues with cracked walls, and recently a furnace unit issue with a short circuit.  The electrician told him that the previous owners probably did something to it, by him observing at it.  The previous owners were most likely flippers who bought it off an older couple.  Is there a way to legally sue them? What would be the next approach?  

Thanks.