Not sure about buyers, but my current house was a nightmare for 10 years after finding the roof/chimney leaked since the house was build and never disclosed by any seller!

I did have a buyer found problems in the walls of a house - sued the seller and got the house for pratically free!

I do too, and if a buyer opts not to do an inspection, I have them sign a form stating I strongly urged them to do one.

Maybe. Even good home inspectors miss things, and buyers often overlook what they think were minor repairs figuring they would do them after they moved in. Well, small repairs ignored can turn into larger repairs later. It's not always easy to identify the date a problem began. Home owners need to stay on top of basic home maintenance. Warranties don't cover everything, and many homeowners fail to renew them.

If they think it was fraud I suggest an attorney.  

Stuff happens.   Discoveries are made upon moving in and  living in a home. Issues are dealt with as they are addressed.

My clients that moved into new construction continue to find defects. The builder is working with some and pushing back on others. Of course, behind the scene there is me guiding my clients on how to proceed with the builder. 

Still recommend a home warranty at all times.

Peter Mohylsky Insure the buyers gets a home warranty. Things happen.

I have have go to list and provide a home warranty.  I do not get involved when something breaks.....

Yes to something popping up but nothing serious. Noted & forgotten

Always recommend inspections.  Buyers decision.  After closing it's between Buyer, Seller and their legal counsel...

It really depends what they are, if the inspector should have found them, if they can be seen with the naked eye or if they are hidden?

At closing I provided them a subscription to Angie's List.

Depending on the nature of the 'defect' they  either pick up the pone and call Angie or their attorney.

If the buyer refused a home inspection, it falls to them. If a home inspection, the repairs may be covered by the home inspector. The ones we use do cover many of these issues.

Home buyers are on their own after the settlement.

Yep, have had 2 new houses & sometimes what happens just can't be fixed. These were all before the norm of inspections. I just went with the builder rep & somethings you just can't see.

Had a Master BR wall that was off by 1-2" on the 2nd sheet of drywall. The wall literally went inward at the corner seam by that much. When I notice it was after closing - it would have been too messy to fix redrywalling the entire room. Builder did offer to fix.

Other house was the sump pump & sewer pumps to the house were not sealed at all.  Used to turn on the AC & a sewer smell used to fill the house. All it took was some serious caulk & the problem was solved. Did take 2-3 months on investigative work.

Some issues can't be caught in  a normal inspection, they have to be discovered through use. It does happen and do what I can to reverse engineer the responsibility and see it to conclusion and resolution.

I've had client discover plumbing issues mostly with the main sewer line after they move in and start running all the appliances in what was a vacant home prior to them moving in. If they waived the camera scope I recommend, I remind them it was offered. If it's something the inspector should have caught, I have the inspector call them directly and resolve.

Tell them that the deadline for forcing someone else to fix Their home was at closing.