Real estate fraud and negligence.

Not a first time home buyer but was looking for help. Basically my family and I bought a home using the VA loan and I believe the sellers (flippers) fraudulently filled out the sellers disclosure using the check mark “I do not know.” I am not sure how you check that as a seller. I believe their modifications unknown to us, were done incorrectly as it has cost us 50k to 70k in repairs. Now we are facing a 14k shower restoration due to water damage. Furthermore, they never did permits which begs the question, were any of their contractors licensed? Please help, I am lost on what to do. The house was sold in as is condition but that does not apply if fraud was involved.