That advice was not helpful. I am looking for an online resource I can
consult without talking to a lawyer first, as I'd like to give the
home builder adequate opportunity to fix the problem without going
through legal channels--but I also want to have all my bases covered.

Anyone with helpful advice would be greatly appreciated. If you know
of this 4-year structural defect liability (I haven't been able to
Google for it), please let me know.

Thanks.